Paul, as far as I am aware, GPO based software deployment does not give you a lot of control over the order of installations and cannot handle application prerequisites well. Fortunately most of prerequisites are functional, i.e. are needed at runtime not at install time so you can install them in whatever order GPO processing decides. As for your problem, it is not clear what you mean by one installation cancelling the next one - perhaps you can start by enabling GPO logging and MSI verbose logging : [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer] "Debug"=dword:00000007 "Logging"="voicewarmup" this will create MSI installation log files in %systemroot%\temp which would be a good starting point to analyse the problem. Igor On 14/04/2008, Paul Snell <paullitsa@xxxxxxx> wrote: > > I have an application to deploy that has a couple of pre-requisites. We > currently install these manually. This involves running three MSI files. I > would like to automate this, and thought I could use either a single or > three separate GPOs and import the MSIs for distribution. However, when I > login as my test user one installation seems to cancel the next, so I only > end up having one of the three applications installed. Is there a way to get > around this that does not involve scripting, as I have no VB skills? > > > > > > Thanks > > > > > > Paul >