Could you tell me how you got PartCover running with VS2008 and win 7 x64? Based on this post http://stackoverflow.com/questions/256287/how-do-i-run-partcover-in-x64-windows, I ran

c:\Program Files (x86)\Gubka Bob\PartCover .NET 2.3>CorFlags.exe PartCover.exe /
32BIT+ /Force

with result

Microsoft (R) .NET Framework CorFlags Conversion Tool. Version 3.5.21022.8 Copyright (c) Microsoft Corporation. All rights reserved. corflags : warning CF011 : The specified file is strong name signed. Using /Force will invalidate the signature of this image and will require the assembly to be resigned. and

c:\Program Files (x86)\NUnit 2.5.2\bin\net-2.0>CorFlags.exe nunit.exe /32BIT+ /Force

with result Microsoft (R) .NET Framework CorFlags Conversion Tool. Version 3.5.21022.8 Copyright (c) Microsoft Corporation. All rights reserved.

Also, based on my discussion http://stackoverflow.com/questions/2546340/using-partcover-2-3-with-net-4-0-runtime/2964333#2964333, I also tried to use the x86 version of NUnit

What I'm trying to run coverage for is the c# money sample for NUnit 2.5.2

I get the same System.Threading.ThreadInterruptedException ---> System.Runtime.InteropServices.COMException (0x80040153): Retrieving the COM class factory for component with CLSID {FB20430E-CDC9-45D7-8453-272268002E08} failed due to the following error: 80040153

Thank you

Edit: same thing with PartCover 2.2

My settings: exe file: C:\Program Files (x86)\NUnit 2.5.2\bin\net-2.0\nunit-console-x86.exe working dir: c:\Program Files (x86)\NUnit 2.5.2\samples\csharp\money\ work arg: /config=c:\Program Files (x86)\NUnit 2.5.2\samples\csharp\money\cs-money.csproj rules: +[]