How To Write to SCOM Operations Manager Event Log Using PowerShell and MOM.ScriptAPI

The following commands can be executed using the normal PowerShell console. SCOM PowerShell snapin is not required.

$momapi = New-Object -comObject "MOM.ScriptAPI"
$momapi.LogScriptEvent("test",9999,2,"this is a test")

This is the log:

Detailed documentation of MOM.ScriptAPI can be found on MSDN