Debugging Windows Installer–Based Installations
InstallShield 2020
You can debug a Windows Installer–based release using the MSI Debugger. The MSI Debugger enables you to view and set Windows Installer properties as you step through the package’s User Interface and Execute sequences.
The MSI Debugger runs through each action and dialog until it reaches your breakpoint, at which point it halts execution. Now, you can view and set properties in the Watch window and the Variable window. Finally, you can step through each of the remaining actions, or you can stop the debugger.
Note:Do not confuse the MSI Debugger with the InstallScript Debugger, since they have completely separate purposes. You cannot debug an installation package with the InstallScript Debugger, and you cannot debug an InstallScript custom action with the MSI Debugger.
See Also
Working with Windows Installer and Advanced UI or Suite/Advanced UI Properties