"InstallShield for Windows Installer is unable to start. Ensure that the Windows Installer engine has been installed properly."
I get this error whenever I try to launch ISWI 2.
It stems from trying to browse for a merge module that was not in the wizard gallery, which caused ISWI to crash.
I posted a bug report to InstallShield and got the usual canned answer... that there is a problem with the merge module... fix it and this problem will go away.
Any suggestions would be appreciated... rebooting does not help, neither does uninstalling/installing ISWI.