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View Full Version : Can't active unwise.exe as a custom action



iainbuchan
02-11-2007, 07:09 AM
I want my installer to detect a previous version of my application installed with Wise Installer 9. Wise puts an unistall exe (unwise.exe) and a log file in the application folder.

When I try to set a custom action to run unwise.exe from [INSTALLDIR] if 'file exists on target...' this fails to execute unwise.exe. Why is that?

How can I force an uninstallation of a previous version of my application that used a non-MSI install technology?