Thanks for your reply, I read website and it says I need to create a COM Interface wrapper using
aximp.exe c:\<your activex path>\Activex_Filename.ocx
but my file is a dll (Redemption.dll)
Also I couldn't find any place to add components. I'm using SharpDevelop 1.0.2 build 1709
Right now I have the DLL added as a reference but can't seem to access it with using statement.