How to: Determining programmatically if DLL is registered
Here is a C# code snippet to determine if a particular DLL is registered or not.
[DllImport("kernel32")]
public extern static int LoadLibrary(string lpLibFileName);
[DllImport("kernel32")]
public extern static bool FreeLibrary(int hLibModule);
public bool IsDllRegistered(string DllName)
{
int libId = LoadLibrary(DllName);
if (libId>0) FreeLibrary(libId);
return (libId>0);
}
Source: http://blogs.msdn.com/asanto