CODEWITHSUNDEEP
c#web-servicescomasmx
RRM1000
RRM1000

Reputation: 357

Error calling COM DLL in asp.net webservice

I am attempting to call a COM component (that lives in component services) via a local web service but it fails with the following error:

Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

I have created a C# windows app that does exactly the same thing and calls the COM component fine every time. I assumed this was a security issue so I have added Everyone to the access permissions for component services but this doesn't help. Any suggestions? Could it be a 64 bit related issue?

Versions: VS2008, .NET 3.5, Windows 7, 64 bit

Upvotes: 3

Views: 475

Answers (1)

KBBWrite
KBBWrite

Reputation: 4419

On a 64-bit version of Microsoft Windows, it is possible to run 32-bit applications using the WOW64 emulator. However, processes can only be 32-bit or 64-bit. You cannot have a process that runs both.

Try creating a new interop dll too

Upvotes: 1

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