Unable to cast COM object of type 'System.__ComObject

Question

I'm getting the following error when I attempt to publish an XNA project in Visual Studio 2010.

Error 1 Publish failed with the following error: Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.VisualStudio.OLE.Interop.IServiceProvider'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{6D5140C1-7436-11CE-8034-00AA006009FA}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). 1 1 Asteroids

I've tried registering actxprxy.dll and ieproxy.dll as others have suggested, but I continue to get this error.

I get this error with a blank XNA Game template, as well as a completed XNA game.

I am able to Build and Debug the same projects fine.

Isahella

Please share some code to discuss. – Hargreaves

It's code irrelevant, occurs with other's code, my own, and just an entry method. – Isahella

Answer 1

there is a discussion that claims that this is due to "registry corruption". One of the comments proposes a "nuclear" solution of re-registering every single OCX and DLL in the System32 folder:

for %1 in (%windir%\system32\*.dll) do regsvr32 /s %1
for %1 in (%windir%\system32\*.ocx) do regsvr32 /s %1

Perhaps it could solve your problem.

Disrepair

Answer 2

This suggested to register ieproxy.dll

regsvr32 "C:\Program Files\Internet Explorer\ieproxy.dll"

if you are running 64 bit windows, try this:

regsvr32 "C:\Program Files (x86)\Internet Explorer\ieproxy.dll"

Forge