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.NET Forum / .NET Framework / Interop / October 200480004003 Invalid Pointer when exposing .net assembly to COM
I am attempting to setup an API that will bridge managed code into an older legacy system. When I follow the directions in MSKB 817248 on exposing a .NET Assembly for COM Interop (or have VS.Net 2003 do it for me) it successfully registers the assembly in COM, however, i cannot create an instance of the object. It throws the following message Error: Invalid Pointe Code: 8000400 Source: (null (from the createobject method in VBS) I have also tried adding the TLB as a reference and creating the object that way. Still no luck, though i get intellisense against the object Any help would be appreciated Regards Not sure why, try putting these two lines immediately before your class declaration: [ Transaction(TransactionOption.RequiresNew) ] [ ObjectPooling(true, 5, 10) ] --- Make sure you aren't passing bad parameters to the CreateInstance call. That is likely causing your issue. Christopher Eck [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights. Was this problem ever resolved? I'm investigating the same error, also when exposing a .NET assembly to COM, but it's not consistently reproduceable. ---
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