VS2010 Test Runner - Unable to start agent process

Question

I can't run any tess in VS2010. Even tests that have run before. I remember setting some services to manual start a few weeks ago, but can't remember what!

Problem: Which agent process / service do I need to start to make this work?

Edit: Even after uninstalling and reinstalling Studio2010 (and taking off the Novell Netware Client which I though may be an issue) it still doesn't work.

Answer 1

I'm using VS2015, I was experiencing the exact same error as the original poster (OP). My solution turned out to be simply turning on the add-on's within Internet Explorer so that I could start recording proper tests of my webapp. There were 3 or 4 add-on's that I simply had to enable. After I did that, this error "Unable to start agent process" never came back.

Answer 2

Got it! Avira Antivirus (even when 'disabled') seemed to be the culprit. Uninstall of the Antivirus made everything work again.