.NET installer Class sometimes not running

[++good]

I am using a .NET installer class to install a .NET windows service and a custom event log.

InstallAware code:

Code: Select all

if Variable ADVERTISE Equals TRUE
    Apply Advertised (get result into variable SUCCESS)
else
    Create Folder $TARGETDIR$\\lib
    Apply Install (get result into variable SUCCESS)
    Run .NET Installer Class $TARGETDIR$\\Some.Service.exe
end

This works most of the time, but sometime the service and event log are not installed. There is no error in the Windows eventlog and the InstallAware install finishes normally. It is as if the .NET installer was never ran. I've only noticed this twice in the 100 or so test installs I've done, but it seems to be happening more often with my customers.

Has anyone else experienced this? Any idea what might be causing it?

Thanks,
Marcus