Error 1722. There is a problem with this Windows Installer package.
During an upgrade, the error 1722 message pops up while uninstalling Render Server.
Error 1722. There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor. Action UnregisterWMIWxRS, location: C:\Program Files\XtenderSolutions\Content Management\Render Server\delWMIclass.exe, command: WxRS
Solution:
Run the following from an elevated command line:
mofcomp wxrs.mof
Program Files\XtenderSolutions\Content Management\Render Server\wxrs.mof