# Sunday, October 11, 2009

Unblocking assemblies in Windows 7

I just ran into a little problem when attempting to run a Visual Studio unit test on my Windows 7 machine. I downloaded log4net.dll and wanted to use it in a project, but when running the unit test I ran into the following error:

Failed to queue test run 'Mark@L-ONE 2009-10-11 14:08:38': Test Run deployment issue: The location of the file or directory 'c:\users\mark\documents\visual studio 2008\projects\sources\developone.myproject.unittests\bin\debug\log4net.dll' is not trusted.

Turns out that a downloaded file is blocked. You can unblock the file by right clicking the file and choosing “Unblock”.

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Make sure you remove all copies of the assembly (if you have copy local = true) and then recompile.

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