Michael,

What happens if you comment-out the "Display Setup Progress Dialog" line?

Some external installer fire events to the foreground progress bar dialog.
In your case I would display a "Wait Dialog..." (if the external installer
does not display a progress dialog). The "Wait Dialog" runs on its own
thread.

Something like:

! ---
Close Setup Progress Dialog

Display Wait Dialog
Run Program %TMPDIR%\Setup.exe (Always Install)
Close Wait Dialog

Display Setup Progress Dialog

! ---

Does this help?

Friedrich

--
Friedrich Linder
CEO, Lindersoft
www.lindersoft.com
+1.954.252.3910

"point. click. ship" - that's SetupBuilder 5