diff --git a/CHANGELOG.md b/CHANGELOG.md
index 06d8732..ba48690 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,4 +10,7 @@
 
 ## Version 0.2.0
 - New dataless enumeration functions are available now, which do not cause GC havoc
-- Unsafe enumeration functions are now marked obsolete
\ No newline at end of file
+- Unsafe enumeration functions are now marked obsolete
+
+## Version 1.0.0
+- DLL configuration on platforms other than Windows is done via app.config now, as per http://www.mono-project.com/docs/advanced/pinvoke/dllmap/
\ No newline at end of file
diff --git a/SharpPhysFS/Interop.cs b/SharpPhysFS/Interop.cs
index c531b7e..d4dbfbb 100644
--- a/SharpPhysFS/Interop.cs
+++ b/SharpPhysFS/Interop.cs
@@ -4,19 +4,19 @@ using System.Runtime.InteropServices;
 
 namespace SharpPhysFS
 {
-  [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+  [UnmanagedFunctionPointer(CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
   public delegate int InitDelegate();
-  [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+  [UnmanagedFunctionPointer(CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
   public delegate void DeinitDelegate();
-  [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+  [UnmanagedFunctionPointer(CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
   public delegate IntPtr MallocDelegate(ulong size);
-  [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+  [UnmanagedFunctionPointer(CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
   public delegate IntPtr ReallocDelegate(IntPtr ptr, ulong size);
-  [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+  [UnmanagedFunctionPointer(CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
   public delegate void FreeDelegate(IntPtr ptr);
-  [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+  [UnmanagedFunctionPointer(CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
   public delegate void StringCallback(IntPtr data, string str);
-  [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+  [UnmanagedFunctionPointer(CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
   public delegate void EnumFilesCallback(IntPtr data, string origdir, string fname);
 
   [StructLayout(LayoutKind.Sequential)]
@@ -62,225 +62,141 @@ namespace SharpPhysFS
     public FreeDelegate Free;
   }
 
-  static class DynamicLoader
+  static class Interop
   {
-    #region Windows
-    [DllImport("kernel32.dll", SetLastError = true)]
-    public static extern IntPtr LoadLibrary(string lpFileName);
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern void PHYSFS_getLinkedVersion(ref Version v);
 
-    [DllImport("kernel32.dll", CharSet = CharSet.Ansi, ExactSpelling = true, SetLastError = true)]
-    public static extern IntPtr GetProcAddress(IntPtr hModule, string procName);
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_init(string argv0);
 
-    [DllImport("kernel32.dll", CharSet = CharSet.Ansi, ExactSpelling = true, SetLastError = true)]
-    public static extern bool FreeLibrary(IntPtr hModule);
-    #endregion
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_deinit();
 
-    #region Unix
-    [DllImport("libdl.so", CallingConvention = CallingConvention.Cdecl, EntryPoint = "dlopen")]
-    public static extern IntPtr unix_dlopen(string filename, int flags);
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_supportedArchiveTypes();
 
-    [DllImport("libdl.so", CallingConvention = CallingConvention.Cdecl, EntryPoint = "dlsym")]
-    public static extern IntPtr unix_dlsym(IntPtr handle, string symbol);
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern void PHYSFS_freeList(IntPtr h);
 
-    [DllImport("libdl.so", CallingConvention = CallingConvention.Cdecl, EntryPoint = "dlclose")]
-    public static extern bool unix_dlclose(IntPtr handle);
-    #endregion
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_getLastError();
 
-    #region OSX
-    [DllImport("libdyld.dylib", CallingConvention = CallingConvention.Cdecl, EntryPoint = "dlopen")]
-    public static extern IntPtr osx_dlopen(string filename, int flags);
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_getDirSeparator();
 
-    [DllImport("libdyld.dylib", CallingConvention = CallingConvention.Cdecl, EntryPoint = "dlsym")]
-    public static extern IntPtr osx_dlsym(IntPtr handle, string symbol);
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern void PHYSFS_permitSymbolicLinks(int permit);
 
-    [DllImport("libdyld.dylib", CallingConvention = CallingConvention.Cdecl, EntryPoint = "dlclose")]
-    public static extern bool osx_dlclose(IntPtr handle);
-    #endregion
-  }
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_getCdRomDirs();
 
-  class Interop
-    : IDisposable
-  {
-    InvalidOperationException initException = new InvalidOperationException("Callbacks not initialized yet");
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate void FnGetLinkedVersion(ref Version v);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate int FnInit(string argv0);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate int FnDeinit();
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate int FnClose(IntPtr ptr);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate IntPtr FnSupportedArchiveTypes();
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate void FnFreeList(IntPtr h);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate IntPtr FnGetLastError();
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate void FnPermitSymbolicLinks(int permit);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate int FnSetWriteDir(string s);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate int FnAddToSearchPath(string s, int i);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate int FnSetSaneConfig(string s1, string s2, string s3, int i1, int i2);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate IntPtr FnEnumerateFiles(string s);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate long FnGetLastModTime(string s);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate long FnRead(IntPtr ptr1, IntPtr ptr2, uint i1, uint i2);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate long FnTell(IntPtr ptr);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate int FnSeek(IntPtr ptr, ulong u);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate long FnFileLength(IntPtr ptr);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate int FnSetAllocator(Allocator alloc);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate int FnMount(string s1, string s2, int i);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate void FnGetCdRomDirsCallback(StringCallback c, IntPtr ptr);
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    public delegate void FnEnumerateFilesCallback(string s, EnumFilesCallback c, IntPtr ptr);
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_getBaseDir();
 
-    // When the callbacks are not yet initialized, instead of throwing a
-    // null reference exception we explain the problem.
-    // I think it makes for a more graceful failure.
-    public FnGetLinkedVersion PHYSFS_getLinkedVersion             => throw initException;
-    public FnInit PHYSFS_init                                     => throw initException; 
-    public FnDeinit PHYSFS_deinit                                 => throw initException;
-    public FnSupportedArchiveTypes PHYSFS_supportedArchiveTypes   => throw initException; 
-    public FnFreeList PHYSFS_freeList                             => throw initException; 
-    public FnGetLastError PHYSFS_getLastError                     => throw initException; 
-    public FnGetLastError PHYSFS_getDirSeparator                  => throw initException; 
-    public FnPermitSymbolicLinks PHYSFS_permitSymbolicLinks       => throw initException; 
-    public FnSupportedArchiveTypes PHYSFS_getCdRomDirs            => throw initException; 
-    public FnGetLastError PHYSFS_getBaseDir                       => throw initException; 
-    public FnGetLastError PHYSFS_getUserDir                       => throw initException; 
-    public FnGetLastError PHYSFS_getWriteDir                      => throw initException; 
-    public FnSetWriteDir PHYSFS_setWriteDir                       => throw initException; 
-    public FnAddToSearchPath PHYSFS_addToSearchPath               => throw initException; 
-    public FnSetWriteDir PHYSFS_removeFromSearchPath              => throw initException; 
-    public FnSupportedArchiveTypes PHYSFS_getSearchPath           => throw initException; 
-    public FnSetSaneConfig PHYSFS_setSaneConfig                   => throw initException; 
-    public FnSetWriteDir PHYSFS_mkdir                             => throw initException; 
-    public FnSetWriteDir PHYSFS_delete                            => throw initException; 
-    public FnEnumerateFiles PHYSFS_getRealDir                     => throw initException; 
-    public FnEnumerateFiles PHYSFS_enumerateFiles                 => throw initException; 
-    public FnSetWriteDir PHYSFS_exists                            => throw initException; 
-    public FnSetWriteDir PHYSFS_isDirectory                       => throw initException; 
-    public FnSetWriteDir PHYSFS_isSymbolicLink                    => throw initException; 
-    public FnGetLastModTime PHYSFS_getLastModTime                 => throw initException; 
-    public FnEnumerateFiles PHYSFS_openWrite                      => throw initException; 
-    public FnEnumerateFiles PHYSFS_openAppend                     => throw initException; 
-    public FnEnumerateFiles PHYSFS_openRead                       => throw initException; 
-    public FnClose PHYSFS_close                                   => throw initException; 
-    public FnRead PHYSFS_read                                     => throw initException; 
-    public FnRead PHYSFS_write                                    => throw initException; 
-    public FnClose PHYSFS_eof                                     => throw initException; 
-    public FnTell PHYSFS_tell                                     => throw initException; 
-    public FnSeek PHYSFS_seek                                     => throw initException; 
-    public FnFileLength PHYSFS_fileLength                         => throw initException; 
-    public FnSeek PHYSFS_setBuffer                                => throw initException; 
-    public FnClose PHYSFS_flush                                   => throw initException; 
-    public FnDeinit PHYSFS_isInit                                 => throw initException; 
-    public FnDeinit PHYSFS_symbolicLinksPermitted                 => throw initException; 
-    public FnSetAllocator PHYSFS_setAllocator                     => throw initException; 
-    public FnMount PHYSFS_mount                                   => throw initException; 
-    public FnEnumerateFiles PHYSFS_getMountPoint                  => throw initException; 
-    public FnGetCdRomDirsCallback PHYSFS_getCdRomDirsCallback     => throw initException; 
-    public FnGetCdRomDirsCallback PHYSFS_getSearchPathCallback    => throw initException; 
-    public FnEnumerateFilesCallback PHYSFS_enumerateFilesCallback => throw initException; 
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_getUserDir();
 
-    public Interop()
-      : this("physfs.dll", "libphysfs.dylib", "libphysfs.so")
-    { }
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_getWriteDir();
 
-    public Interop(string libname)
-      : this($"{libname}.dll", $"{libname}.dylib", $"{libname}.so")
-    { }
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_setWriteDir(string s);
 
-    Func<string, IntPtr> loadLibrary;
-    Func<IntPtr, string, IntPtr> loadSymbol;
-    Func<IntPtr, bool> freeLibrary;
-    IntPtr library;
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_addToSearchPath(string s, int i);
 
-    public Interop(string winlib, string maclib, string unixlib)
-    {
-      /* This method is used to dynamically load the physfs
-       * library. It works by detecting the current platform
-       * and deciding whether to use LoadLibrary/GetProcAddr
-       * on Windows or dlopen/dlsym on Linux and OSX.
-       * The the class is then scanned using reflection
-       * to populate all the callbacks with the right function
-       * pointers from the loaded library
-       */
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_removeFromSearchPath(string s);
 
-      string libraryName;
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_getSearchPath();
 
-      if (Environment.OSVersion.Platform == PlatformID.Win32NT)
-      {
-        loadLibrary = DynamicLoader.LoadLibrary;
-        loadSymbol = DynamicLoader.GetProcAddress;
-        freeLibrary = DynamicLoader.FreeLibrary;
-        libraryName = winlib;
-      }
-      else if(Environment.OSVersion.Platform == PlatformID.MacOSX)
-      {
-        loadLibrary = n => DynamicLoader.osx_dlopen(n, 1);
-        loadSymbol = DynamicLoader.osx_dlsym;
-        freeLibrary = DynamicLoader.osx_dlclose;
-        libraryName = maclib;
-      }
-      else
-      {
-        loadLibrary = n => DynamicLoader.unix_dlopen(n, 1);
-        loadSymbol = DynamicLoader.unix_dlsym;
-        freeLibrary = DynamicLoader.unix_dlclose;
-        libraryName = unixlib;
-      }
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_setSaneConfig(string s1, string s2, string s3, int i1, int i2);
 
-      library = loadLibrary(libraryName);
-      if (library == IntPtr.Zero)
-      {
-        throw new PhysFSLibNotFound();
-      }
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_mkdir(string s);
 
-      var fields = typeof(Interop).GetFields();
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_delete(string s);
 
-      foreach(var field in fields.Where(x => x.Name.StartsWith("PHYSFS_")))
-      {
-        var funcPtr = loadSymbol(library, field.Name);
-        var del = Marshal.GetDelegateForFunctionPointer(funcPtr, field.FieldType);
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_getRealDir(string s);
 
-        field.SetValue(this, del);
-      }
-    }
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_enumerateFiles(string s);
 
-    #region IDisposable Support
-    private bool disposedValue = false; // To detect redundant calls
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_exists(string s);
 
-    protected virtual void Dispose(bool disposing)
-    {
-      if (!disposedValue)
-      {
-        /*if (disposing)
-        {
-          // TODO: dispose managed state (managed objects).
-        }*/
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_isDirectory(string s);
 
-        freeLibrary(library);
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_isSymbolicLink(string s);
 
-        disposedValue = true;
-      }
-    }
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern long PHYSFS_getLastModTime(string s);
 
-    public void Dispose()
-    {
-      Dispose(true);
-    }
-    #endregion
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_openWrite(string s);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_openAppend(string s);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_openRead(string s);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_close(IntPtr ptr);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern long PHYSFS_read(IntPtr ptr1, IntPtr ptr2, uint i1, uint i2);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern long PHYSFS_write(IntPtr ptr1, IntPtr ptr2, uint i1, uint i2);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_eof(IntPtr ptr);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern long PHYSFS_tell(IntPtr ptr);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_seek(IntPtr ptr, ulong u);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern long PHYSFS_fileLength(IntPtr ptr);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_setBuffer(IntPtr ptr, ulong u);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_flush(IntPtr ptr);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_isInit();
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_symbolicLinksPermitted();
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_setAllocator(Allocator alloc);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern int PHYSFS_mount(string s1, string s2, int i);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern IntPtr PHYSFS_getMountPoint(string s);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern void PHYSFS_getCdRomDirsCallback(StringCallback c, IntPtr p);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern void PHYSFS_getSearchPathCallback(StringCallback c, IntPtr p);
+
+    [DllImport("physfs.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
+    public static extern void PHYSFS_enumerateFilesCallback(string s, EnumFilesCallback c, IntPtr p);
   }
 }
diff --git a/SharpPhysFS/PhysFS.LowLevel.cs b/SharpPhysFS/PhysFS.LowLevel.cs
index dbf199f..37924ab 100644
--- a/SharpPhysFS/PhysFS.LowLevel.cs
+++ b/SharpPhysFS/PhysFS.LowLevel.cs
@@ -8,7 +8,7 @@ namespace SharpPhysFS
     {
       public static IntPtr OpenWrite(string filename, PhysFS physFS)
       {
-        var val = physFS.interop.PHYSFS_openWrite(filename);
+        var val = Interop.PHYSFS_openWrite(filename);
         if (val == null)
           throw new PhysFSException(physFS);
         return val;
@@ -16,7 +16,7 @@ namespace SharpPhysFS
 
       public static IntPtr OpenAppend(string filename, PhysFS physFS)
       {
-        var val = physFS.interop.PHYSFS_openAppend(filename);
+        var val = Interop.PHYSFS_openAppend(filename);
         if (val == null)
           throw new PhysFSException(physFS);
         return val;
@@ -24,7 +24,7 @@ namespace SharpPhysFS
 
       public static IntPtr OpenRead(string filename, PhysFS physFS)
       {
-        var val = physFS.interop.PHYSFS_openRead(filename);
+        var val = Interop.PHYSFS_openRead(filename);
         if (val == null)
           throw new PhysFSException(physFS);
         return val;
@@ -32,62 +32,62 @@ namespace SharpPhysFS
 
       public static void Close(IntPtr file, PhysFS physFS)
       {
-        int err = physFS.interop.PHYSFS_close(file);
+        int err = Interop.PHYSFS_close(file);
         physFS.ThrowException(err);
       }
 
-      public static long Read(IntPtr file, byte[] buffer, uint objSize, uint objCount, PhysFS physFS)
+      public static long Read(IntPtr file, byte[] buffer, uint objSize, uint objCount)
       {
         unsafe
         {
           fixed (void* ptr = buffer)
           {
-            return physFS.interop.PHYSFS_read(file, (IntPtr)ptr, objSize, objCount);
+            return Interop.PHYSFS_read(file, (IntPtr)ptr, objSize, objCount);
           }
         }
       }
 
-      public static long Write(IntPtr file, byte[] buffer, uint objSize, uint objCount, PhysFS physFS)
+      public static long Write(IntPtr file, byte[] buffer, uint objSize, uint objCount)
       {
         unsafe
         {
           fixed (void* ptr = buffer)
           {
-            return physFS.interop.PHYSFS_write(file, (IntPtr)ptr, objSize, objCount);
+            return Interop.PHYSFS_write(file, (IntPtr)ptr, objSize, objCount);
           }
         }
       }
 
-      public static bool EOF(IntPtr file, PhysFS physFS)
+      public static bool EOF(IntPtr file)
       {
-        return physFS.interop.PHYSFS_eof(file) != 0;
+        return Interop.PHYSFS_eof(file) != 0;
       }
 
-      public static long Tell(IntPtr file, PhysFS physFS)
+      public static long Tell(IntPtr file)
       {
-        return physFS.interop.PHYSFS_tell(file);
+        return Interop.PHYSFS_tell(file);
       }
 
       public static void Seek(IntPtr file, ulong pos, PhysFS physFS)
       {
-        int err = physFS.interop.PHYSFS_seek(file, pos);
+        int err = Interop.PHYSFS_seek(file, pos);
         physFS.ThrowException(err);
       }
 
-      public static long FileLength(IntPtr file, PhysFS physFS)
+      public static long FileLength(IntPtr file)
       {
-        return physFS.interop.PHYSFS_fileLength(file);
+        return Interop.PHYSFS_fileLength(file);
       }
 
       public static void SetBuffer(IntPtr file, ulong bufSize, PhysFS physFS)
       {
-        int err = physFS.interop.PHYSFS_setBuffer(file, bufSize);
+        int err = Interop.PHYSFS_setBuffer(file, bufSize);
         physFS.ThrowException(err);
       }
 
       public static void Flush(IntPtr file, PhysFS physFS)
       {
-        int err = physFS.interop.PHYSFS_flush(file);
+        int err = Interop.PHYSFS_flush(file);
         physFS.ThrowException(err);
       }
     }
diff --git a/SharpPhysFS/PhysFS.cs b/SharpPhysFS/PhysFS.cs
index 5ce21cd..ed93253 100644
--- a/SharpPhysFS/PhysFS.cs
+++ b/SharpPhysFS/PhysFS.cs
@@ -24,11 +24,13 @@ namespace SharpPhysFS
       { }
     }
 
-    Interop interop;
-
     public PhysFS(string argv0)
     {
-      interop = new Interop();
+      Init(argv0);
+    }
+
+    public PhysFS(string argv0, string libname)
+    {
       Init(argv0);
     }
 
@@ -52,7 +54,7 @@ namespace SharpPhysFS
     public Version GetLinkedVersion()
     {
       Version v = new Version();
-      interop.PHYSFS_getLinkedVersion(ref v);
+      Interop.PHYSFS_getLinkedVersion(ref v);
       return v;
     }
 
@@ -67,7 +69,7 @@ namespace SharpPhysFS
     /// <param name="argv0">This should be the path of the executable (first arguments passed to main function in C programs)</param>
     public void Init(string argv0)
     {
-      int err = interop.PHYSFS_init(argv0);
+      int err = Interop.PHYSFS_init(argv0);
       ThrowException(err);
     }
 
@@ -90,7 +92,7 @@ namespace SharpPhysFS
     /// </remarks>
     public void Deinit()
     {
-      int err = interop.PHYSFS_deinit();
+      int err = Interop.PHYSFS_deinit();
       ThrowException(err);
     }
 
@@ -117,7 +119,7 @@ namespace SharpPhysFS
     /// <param name="appendToPath">True to append to search path, false to prepend.</param>
     public void Mount(string dir, string mountPoint, bool appendToPath)
     {
-      int err = interop.PHYSFS_mount(dir, mountPoint, appendToPath ? 1 : 0);
+      int err = Interop.PHYSFS_mount(dir, mountPoint, appendToPath ? 1 : 0);
       ThrowException(err);
     }
 
@@ -134,7 +136,7 @@ namespace SharpPhysFS
     /// <returns>String of last error message.</returns>
     public string GetLastError()
     {
-      return Marshal.PtrToStringAnsi(interop.PHYSFS_getLastError());
+      return Marshal.PtrToStringAnsi(Interop.PHYSFS_getLastError());
     }
 
     /// <summary>
@@ -150,7 +152,7 @@ namespace SharpPhysFS
     /// <returns>Platform-dependent dir separator string</returns>
     public string GetDirSeparator()
     {
-      return Marshal.PtrToStringAnsi(interop.PHYSFS_getDirSeparator());
+      return Marshal.PtrToStringAnsi(Interop.PHYSFS_getDirSeparator());
     }
 
     /// <summary>
@@ -196,7 +198,7 @@ namespace SharpPhysFS
     /// <returns>An enumeration of supported archive types</returns>
     public IEnumerable<ArchiveInfo> SupportedArchiveTypes()
     {
-      IntPtr archives = interop.PHYSFS_supportedArchiveTypes();
+      IntPtr archives = Interop.PHYSFS_supportedArchiveTypes();
       IntPtr i = archives;
       for (i = archives; Marshal.ReadIntPtr(i) != IntPtr.Zero; i = IntPtr.Add(i, IntPtr.Size))
       {
@@ -231,7 +233,7 @@ namespace SharpPhysFS
     /// <param name="permit">true to permit symlinks, false to deny linking.</param>
     public void PermitSymbolicLinks(bool permit)
     {
-      interop.PHYSFS_permitSymbolicLinks(permit ? 1 : 0);
+      Interop.PHYSFS_permitSymbolicLinks(permit ? 1 : 0);
     }
 
     /// <summary>
@@ -268,7 +270,7 @@ namespace SharpPhysFS
     /// <returns></returns>
     public string GetBaseDir()
     {
-      return Marshal.PtrToStringAnsi(interop.PHYSFS_getBaseDir());
+      return Marshal.PtrToStringAnsi(Interop.PHYSFS_getBaseDir());
     }
 
     /// <summary>
@@ -286,7 +288,7 @@ namespace SharpPhysFS
     /// <returns>String of user dir in platform-dependent notation.</returns>
     public string GetUserDir()
     {
-      return Marshal.PtrToStringAnsi(interop.PHYSFS_getUserDir());
+      return Marshal.PtrToStringAnsi(Interop.PHYSFS_getUserDir());
     }
 
     /// <summary>
@@ -298,7 +300,7 @@ namespace SharpPhysFS
     /// <returns>String of write dir in platform-dependent notation, OR null IF NO WRITE PATH IS CURRENTLY SET</returns>
     public string GetWriteDir()
     {
-      return Marshal.PtrToStringAnsi(interop.PHYSFS_getWriteDir());
+      return Marshal.PtrToStringAnsi(Interop.PHYSFS_getWriteDir());
     }
 
     /// <summary>
@@ -316,7 +318,7 @@ namespace SharpPhysFS
     /// </param>
     public void SetWriteDir(string path)
     {
-      int err = interop.PHYSFS_setWriteDir(path);
+      int err = Interop.PHYSFS_setWriteDir(path);
       ThrowException(err);
     }
 
@@ -328,7 +330,7 @@ namespace SharpPhysFS
     [Obsolete("AddToSearchPath is deprecated, please use Mount instead")]
     public void AddToSearchPath(string newDir, bool appendToPath)
     {
-      int err = interop.PHYSFS_addToSearchPath(newDir, appendToPath ? 1 : 0);
+      int err = Interop.PHYSFS_addToSearchPath(newDir, appendToPath ? 1 : 0);
       ThrowException(err);
     }
 
@@ -344,7 +346,7 @@ namespace SharpPhysFS
     /// <param name="oldDir">	dir/archive to remove.</param>
     public void RemoveFromSearchPath(string oldDir)
     {
-      int err = interop.PHYSFS_removeFromSearchPath(oldDir);
+      int err = Interop.PHYSFS_removeFromSearchPath(oldDir);
       ThrowException(err);
     }
 
@@ -414,7 +416,7 @@ namespace SharpPhysFS
     /// <param name="archivesFirst">True to prepend the archives to the search path. False to append them. Ignored if !<paramref name="archiveExt"/>.</param>
     public void SetSaneConfig(string organization, string appName, string archiveExt, bool includeCdRoms, bool archivesFirst)
     {
-      int err = interop.PHYSFS_setSaneConfig(organization, appName, archiveExt, includeCdRoms ? 1 : 0, archivesFirst ? 1 : 0);
+      int err = Interop.PHYSFS_setSaneConfig(organization, appName, archiveExt, includeCdRoms ? 1 : 0, archivesFirst ? 1 : 0);
       ThrowException(err);
     }
 
@@ -434,7 +436,7 @@ namespace SharpPhysFS
     /// <param name="dirName">New dir to create.</param>
     public void Mkdir(string dirName)
     {
-      int err = interop.PHYSFS_mkdir(dirName);
+      int err = Interop.PHYSFS_mkdir(dirName);
       ThrowException(err);
     }
 
@@ -461,7 +463,7 @@ namespace SharpPhysFS
     /// <param name="filename">Filename to delete.</param>
     public void Delete(string filename)
     {
-      int err = interop.PHYSFS_delete(filename);
+      int err = Interop.PHYSFS_delete(filename);
       ThrowException(err);
     }
 
@@ -485,7 +487,7 @@ namespace SharpPhysFS
     /// <returns>String of element of search path containing the the file in question. null if not found.</returns>
     public string GetRealDir(string filename)
     {
-      return Marshal.PtrToStringAnsi(interop.PHYSFS_getRealDir(filename));
+      return Marshal.PtrToStringAnsi(Interop.PHYSFS_getRealDir(filename));
     }
 
     /// <summary>
@@ -500,7 +502,7 @@ namespace SharpPhysFS
     /// <returns>True if filename exists. false otherwise.</returns>
     public bool Exists(string fname)
     {
-      return interop.PHYSFS_exists(fname) != 0;
+      return Interop.PHYSFS_exists(fname) != 0;
     }
 
     /// <summary>
@@ -512,7 +514,7 @@ namespace SharpPhysFS
     /// <returns>True if filename exists and is a directory. False otherwise.</returns>
     public bool IsDirectory(string fname)
     {
-      return interop.PHYSFS_isDirectory(fname) != 0;
+      return Interop.PHYSFS_isDirectory(fname) != 0;
     }
 
     /// <summary>
@@ -524,7 +526,7 @@ namespace SharpPhysFS
     /// <returns>True if filename exists and is a symlink. False otherwise.</returns>
     public bool IsSymbolicLink(string fname)
     {
-      return interop.PHYSFS_isSymbolicLink(fname) != 0;
+      return Interop.PHYSFS_isSymbolicLink(fname) != 0;
     }
 
     /// <summary>
@@ -539,7 +541,7 @@ namespace SharpPhysFS
     /// <returns>Last modified time of the file. -1 if it can't be determined.</returns>
     public long GetLastModTime(string fname)
     {
-      return interop.PHYSFS_getLastModTime(fname);
+      return Interop.PHYSFS_getLastModTime(fname);
     }
 
     /// <summary>
@@ -552,7 +554,7 @@ namespace SharpPhysFS
     /// <returns>True if library is initialized, false if library is not.</returns>
     public bool IsInit()
     {
-      return interop.PHYSFS_isInit() != 0;
+      return Interop.PHYSFS_isInit() != 0;
     }
 
     /// <summary>
@@ -565,12 +567,12 @@ namespace SharpPhysFS
     /// <returns>True if symlinks are permitted, false if not.</returns>
     public bool SymbolicLinksPermitted()
     {
-      return interop.PHYSFS_symbolicLinksPermitted() != 0;
+      return Interop.PHYSFS_symbolicLinksPermitted() != 0;
     }
 
     public void SetAllocator(Allocator allocator)
     {
-      int err = interop.PHYSFS_setAllocator(allocator);
+      int err = Interop.PHYSFS_setAllocator(allocator);
       ThrowException(err);
     }
 
@@ -588,7 +590,7 @@ namespace SharpPhysFS
     /// <returns>String of mount point if added to path</returns>
     public string GetMountPoint(string dir)
     {
-      var s = Marshal.PtrToStringAnsi(interop.PHYSFS_getMountPoint(dir));
+      var s = Marshal.PtrToStringAnsi(Interop.PHYSFS_getMountPoint(dir));
       if(s == null)
       {
         throw new PhysFSException(this);
@@ -608,7 +610,7 @@ namespace SharpPhysFS
     void GetCdRomDirsCallback(StringCallback c, object data)
     {
       GCHandle objHandle = GCHandle.Alloc(data);
-      interop.PHYSFS_getCdRomDirsCallback(c, GCHandle.ToIntPtr(objHandle));
+      Interop.PHYSFS_getCdRomDirsCallback(c, GCHandle.ToIntPtr(objHandle));
       objHandle.Free();
     }
 
@@ -633,13 +635,13 @@ namespace SharpPhysFS
     /// <param name="c">Callback function to notify about detected drives.</param>
     public void GetCdRomDirsCallback(Action<string> c)
     {
-      interop.PHYSFS_getCdRomDirsCallback((p, s) => c(s), IntPtr.Zero);
+      Interop.PHYSFS_getCdRomDirsCallback((p, s) => c(s), IntPtr.Zero);
     }
     
     void GetSearchPathCallback(StringCallback c, object data)
     {
       GCHandle objHandle = GCHandle.Alloc(data);
-      interop.PHYSFS_getSearchPathCallback(c, GCHandle.ToIntPtr(objHandle));
+      Interop.PHYSFS_getSearchPathCallback(c, GCHandle.ToIntPtr(objHandle));
       objHandle.Free();
     }
 
@@ -664,13 +666,13 @@ namespace SharpPhysFS
     /// <param name="c">Callback function to notify about search path elements.</param>
     public void GetSearchPathCallback(Action<string> c)
     {
-      interop.PHYSFS_getSearchPathCallback((p, s) => c(s), IntPtr.Zero);
+      Interop.PHYSFS_getSearchPathCallback((p, s) => c(s), IntPtr.Zero);
     }
     
     void EnumerateFilesCallback(string dir, EnumFilesCallback c, object data)
     {
       GCHandle objHandle = GCHandle.Alloc(data);
-      interop.PHYSFS_enumerateFilesCallback(dir, c, GCHandle.ToIntPtr(objHandle));
+      Interop.PHYSFS_enumerateFilesCallback(dir, c, GCHandle.ToIntPtr(objHandle));
       objHandle.Free();
     }
 
@@ -701,7 +703,7 @@ namespace SharpPhysFS
     /// <param name="c">Callback function to notify about search path elements.</param>
     public void EnumerateFilesCallback(string dir, Action<string, string> c)
     {
-      interop.PHYSFS_enumerateFilesCallback(dir, (data, origdir, fname) => c(origdir, fname), IntPtr.Zero);
+      Interop.PHYSFS_enumerateFilesCallback(dir, (data, origdir, fname) => c(origdir, fname), IntPtr.Zero);
     }
 
     public PhysFSStream OpenAppend(string file)
@@ -731,7 +733,6 @@ namespace SharpPhysFS
         if (disposing)
         {
           Deinit();
-          interop.Dispose();
         }
 
         disposed = true;
diff --git a/SharpPhysFS/PhysFSStream.cs b/SharpPhysFS/PhysFSStream.cs
index d77e742..b231cc5 100644
--- a/SharpPhysFS/PhysFSStream.cs
+++ b/SharpPhysFS/PhysFSStream.cs
@@ -49,7 +49,7 @@ namespace SharpPhysFS
     {
       get
       {
-        return PhysFS.LowLevel.FileLength(handle, physFS);
+        return PhysFS.LowLevel.FileLength(handle);
       }
     }
 
@@ -57,7 +57,7 @@ namespace SharpPhysFS
     {
       get
       {
-        return PhysFS.LowLevel.Tell(handle, physFS);
+        return PhysFS.LowLevel.Tell(handle);
       }
       set
       {
@@ -67,7 +67,7 @@ namespace SharpPhysFS
 
     public long Read(byte[] buffer, uint offset, uint count)
     {
-      return PhysFS.LowLevel.Read(handle, buffer, 1, count, physFS);
+      return PhysFS.LowLevel.Read(handle, buffer, 1, count);
     }
 
     public override int Read(byte[] buffer, int offset, int count)
@@ -81,9 +81,9 @@ namespace SharpPhysFS
       if (origin == SeekOrigin.Begin)
         pos = 0;
       else if (origin == SeekOrigin.Current)
-        pos = PhysFS.LowLevel.Tell(handle, physFS);
+        pos = PhysFS.LowLevel.Tell(handle);
       else
-        pos = PhysFS.LowLevel.FileLength(handle, physFS);
+        pos = PhysFS.LowLevel.FileLength(handle);
 
       PhysFS.LowLevel.Seek(handle, (ulong)(pos + offset), physFS);
       return pos + offset;
@@ -91,7 +91,7 @@ namespace SharpPhysFS
 
     public long Write(byte[] buffer, uint offset, uint count)
     {
-      return PhysFS.LowLevel.Write(handle, buffer, 1, count, physFS);
+      return PhysFS.LowLevel.Write(handle, buffer, 1, count);
     }
 
     public override void Write(byte[] buffer, int offset, int count)
diff --git a/SharpPhysFS/Properties/AssemblyInfo.cs b/SharpPhysFS/Properties/AssemblyInfo.cs
index c752f54..c96917e 100644
--- a/SharpPhysFS/Properties/AssemblyInfo.cs
+++ b/SharpPhysFS/Properties/AssemblyInfo.cs
@@ -10,7 +10,7 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("Francesco Bertolaccini")]
 [assembly: AssemblyProduct("SharpPhysFS")]
-[assembly: AssemblyCopyright("Copyright © 2016 Francesco Bertolaccini")]
+[assembly: AssemblyCopyright("")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.2.0.0")]
-[assembly: AssemblyFileVersion("0.2.0.0")]
+[assembly: AssemblyVersion("0.1.0.0")]
+[assembly: AssemblyFileVersion("0.1.0.0")]
diff --git a/Test/App.config b/Test/App.config
index 88fa402..24fcfab 100644
--- a/Test/App.config
+++ b/Test/App.config
@@ -3,4 +3,5 @@
     <startup> 
         <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
     </startup>
+    <dllmap os="!windows" dll="physfs.dll" target="libphysfs.so" />
 </configuration>
\ No newline at end of file