When calling the *.msi file directly I had several problems in the past. Thus I am calling the file by using the msiexec.exe and that's looking like that:
<item display="Microsoft Messenger 5.01">
<execute display="Installing..." desc="MS Messenger">
<arguments>/i #Systemdrive#\Install\MS_Messenger\Messenger.msi /qb /norestart ALLUSERS=1 EULA_ACCEPT=YES</arguments>
May be that the parameters "ALLUSERS" and "EULA_ACCEPT" are not necessary but both don't generate an error.
Hope that helps
Edited by messer, 23 August 2005 - 09:03 AM.