How can I start the application once installed using the Post-Installation area in PSADT? I will be using SCCM to install.
Your best bet is Start-Process. Do get-help start-process for more info. This is part of PoSh core, not an addon from PSADT.
I thought I tried start-process in the past but failed to start but I will give it another go.
Start-process if run with sccm will run it as system so if application needs logon then that will not work properly. You can run the command to schedule the task
You need to use execute-processasuser this will do what you want but under the current logged on user unless you specify the user you want
What bwsanders stated is the way to go since ConfigMgr runs processes as SYSTEM by default. Plus the function gets logged in PSADT whereas Start-Process does not. But this is only the case when using a machine wide install for all users. When the installation behavior to install as user is needed, then Execute-Process works, whereas Execute-ProcessAsUser does not.
You can just use Execute-Process with -NoWait parameter. The toolkit will start the process but then it will just continue executing the script and closing.