I also added this to a similar thread on the external CCS forum, http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/p/35063/123520.aspx#123520 .
A major customer is trying to get some codec code from TI to build, and is trying to uninstall 4.1 to downgrade to the release TII is using, 4.0.2. But when he tries to uninstall, he gets the error dialog below
Primarily, how can he get rid of CCS 4.1.0 to get a clean install of CCS 4.0.2?
Secondarily, should an install of 4.0.2 overwrite everything cleanly enough without going through this uninstall process?