PowerShell for BizTalk Administration: Is this thing on? Part 3

In Part 2 I outlined getting the status of BizTalk artifacts (Recieve Locations, Send Ports, and Orchestrations) using PowerShell. All 3 of those use the same pattern. Validating the status of the Host Instances, however, can be done without using the Microsoft.BizTalk.ExplorerOM.

Looking at the Host Instances (not Hosts) at a high level, they are nothing more than a Windows Service on a server. So two ways to get information on a service via PowerShell is use use either the Win32_Process or Win32_Service objects using the PowerShell Get-WMIObject command. However, there is a unique WMI object specifically for BizTalk: MSBTS_HostInstance. I chose the last one for my script.  This does assume you have this class installed on the server you are making the call from.

Instantiating the object is a one-liner (no need to establish the SQL Server, as in the previous post).  At that point you can loop through each host instance and get the state of the Host Instances.