The script is available for download in Microsoft Script Browser for Windows PowerShell ISE. You need to install the Script Browser application first, and search for the script sample title.
This script could be used to collect warning and error events which generated by Microsoft Exchange Server 2010. You can collect these events by Exchange server role.
In a real world, IT Administrators need to collect warning and error events for troubleshooting and monitoring the health of Microsoft Exchange 2010. It will be a time-consuming task in a large scale deployment.
You can find more All-In-One Script Framework script samples at https://aka.ms/onescriptingallery