How to check if a DLL file is registered?

Question

How do I find whether a DLL file written in C# is registered or not programmatically?

I already tried this code, but it doesn\'t come off.

If I register a DL

Answer 1

[DllImport("kernel32")]    
public extern static bool FreeLibrary(int hLibModule);

[DllImport("kernel32")]    
public extern static int LoadLibrary(string lpLibFileName);



public bool IsDllRegistered(string DllName)    
{

      int libId = LoadLibrary(DllName);    
      if (libId>0) FreeLibrary(libId);    
      return (libId>0);    
}