I have an update application which silently uninstalls the current version of our software and then silently installs the new version. I am using the command line:
msiexec.exe /x <our product code> /quiet
And to re-install:
<our bootstrapper.exe> /quiet /UPGRADING="YES"
These operations fail when running on XP SP1 (msiexec 2600 I believe), I am trying to find out which switches are causing the problem and if there are alternatives we can use for the older MSIEXEC
Thanks