CODEWITHSUNDEEP
c#comcom-interop
David
David

Reputation: 5533

Cannot use my interop dll in my visual studio project

I am using a 3rd party dll. Interop.CRYPTLib. I am trying to use it in my .net application but I'm getting this error 

"Retrieving the COM class factory for component with CLSID {AF6AF735-6D30-4E16-8AFA-FD4317E87D1B} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))."

I tried using regsvr32 but now I get this error 

The module was loaded but the entry-point dllregisterserver was not found

I used regasm which says types registered successfully but it still fails with the first error, but when I use /tlb:Interop.cryptlib.tlb I get the error 

Interop.CRYPTLib.dll' was imported from a type library and cannot be re-exported to a type library.  Make sure the type library from
which the assembly was imported is registered.

My code is 

var s = new CRYPTLib.EncryptDecryptClass();

Upvotes: 3

Views: 1633

Answers (1)

shf301
shf301

Reputation: 31394

Interop.CRYPTLib isn't a COM DLL - it is only a .NET wrapper for the CRYPTLib COM DLL. You need the DLL that implements CRYPTLib (probably CRYPTLib.dll) and install that DLL with regsvr32.

Upvotes: 3

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