[wpkg-users] Inno Setup bug affecting silent installs on Windows 7

[Brent A Nelson]

I recently ran across two packages (gimp-help-2-2.6.0-en-setup.exe and 
R-2.10.1-win32.exe, although R 2.10.0 is also affected) that give a "Not 
implemented." popup on Windows 7, when run from outside of a login (e.g., 
unattended Windows 7 setup from Setupcomplete.cmd), and the install never 
starts.

If you were to run them from a wpkg service, and didn't suppress message 
boxes, it would appear as if the installs silently crashed (if you 
suppress message boxes, it will still fail to install anything).  If you 
run within a login, then the install works just fine.

The trouble is a bug in certain relatively recent versions of Inno Setup. The 
examples above were both 5.3.5.  The bug was fixed in version 5.3.7.

More info:
http://www.bullzip.com/phpBB/viewtopic.php?f=5&t=7334

This should fix itself over time, as newer packages are produced with the new 
Inno Setup.  In the meantime, if you encounter the error in a package, try 
using an older package until a newer one becomes available (e.g.).

Thanks,

Brent Nelson
Director of Computing
Dept. of Physics
University of Florida