If unable to remove/uninstall, from the folder containing the collector install files run:
msiexec /x collectorinstaller.msi /l*v dcinstall.log
Log file shows more detail:
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 UnRegisterTimeSyncDLL, location: C:\Windows\SysWOW64\, command: regsvr32.exe /u /s "D:\Program Files (x86)\Quest Software\\Common Files\Test Providers\TimeSynchronizationTestProvider.dll"
The collector may have previously been installed on d: removed then installed on c:
Create the folder that is flagging in the error: "D:\Program Files (x86)\Quest Software\Common Files\"
copy from "C:\Program Files (x86)\Quest Software\Common Files\" the folder "Test Providers" to the folder "D:\Program Files (x86)\Quest Software\Common Files\"
From command prompt run regsvr32.exe "D:\Program Files (x86)\Quest Software\Common Files\Test Providers\TimeSynchronizationTestProvider.dll"
Run the uninstall, or remove from "Add/Remove Programs" ("Uninstall a program" in Server 2008).
