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I think it's best we continue the test I posted earlier.
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On the same machine the dump was taken from, try searching the registry for GUID AB8E5D11-B0C1-5A21-95AE-F16BF3A37624. Here are two articles that talk about IID: An IID is an "Interface Identifier", and is in the COM area of Windows. I am going backward because that is how the thread is displayed in the debugger, with the lowest frame number being the most recent. (Inline Function) -`- combase!OriginateErrorUsingFormattedResource(void)+0x41 "Failed to find proxy registration for IID. The error starts in frame 4 of thread 7 in the dump: That will help with testing, if available. Also, if you have an environment where you can run your tests on a virtual machine, and have the ability to snapshot a state, such as initial installation, then rolling back to that state after a test should be very quick and easy. We just made some minor changes that probably don't affect this issue, but worth testing.
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Thing you might want to try is redownload the VDOT tool.
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