Summary

This article explains the ways that you can run the InstallScript Debugger during an uninstallation

Discussion

From the InstallShield User Interface

When running the InstallScript Debugger through the user interface (Build > Debug [F5]), your product may be getting uninstalled before debugging occurs. This behavior can be disabled to allow debugging to occur during uninstall. This setting is found under Tools > Options > Preferences > Uninstall the product automatically before installing or debugging. Disabling this option will allow you to run an uninstall through the user interface as well as run the debugger during an uninstall.

From the Command-Line

For a Basic MSI or InstallScript MSI project, the following command runs the uninstallation with the InstallScript Debugger:

Setup.exe /x /v"ISSCRIPTDEBUG=1 ISSCRIPTDEBUGPATH=\"path-to-Setup.dbg\""

For an InstallScript project, the following command runs the uninstallation with the InstallScript Debugger:

Setup.exe /uninst /d"path-to-Setup.dbg"

Additional Information

For more information, see the following related Knowledge Base article:  Setup.exe /d Does Not Launch Debugger