InstallAgent will not upgrade agent if there are corrupt UninstallKey entries #37

In cases where there is a bad registry value or more than one UninstallKey value the the InstallAgent will be unable to properly remove the currently installed agent.

The default behavior of InstallAgent is if the MSI removal fails, it will exit the code with the fail.

There are several options available:

• Reuse the previous AgentCleanup4.exe
• Code up forced removal of the previous agent

Given the further possible issues that could be added by a forced removal, it should initially be an optional flag in the partner config.