API: Find all servers with specific software

Good morning,

I need to be able to tell if all Windows Servers which meet specific criteria, have a specific piece of software installed.

I'm looking to schedule this weekly, and send out emails in case I find a server.

Therefor PowerShell and the OCS API seemed like a good idea.

I've looked at the API documentation, but it seems there is either too little documentation or what I'm looking for is impossible?

I am able to lookup a single server by searching for its hostname. But that is all I managed to do.

Anyone any tips or example queries that I can re-use ?

Thank you!