Have you registered the DLL first?
Also what Matti said:
quote:
Originally posted by Matti
Interaction with C# DLLs should be done with COM, not with Interop.Call. You need to make your classes and methods "ComVisible" so that they are exposed for COM in the DLL.
Thus, not any .NET DLL can be called though. It needs to be properly prepped to handle COM.
Example tutorial (although the example calling script is VBScript, the exact same things for the DLL apply for when you want to call it from JScript):
http://www.codeproject.com/Articles/79314/How-to-...om-a-VBScript.aspx
Also read the comments in that article, especially "Improovements for your code"
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