Here's a new tool for you to play with this week. it's not Exchange related as such, but I thought it would still be worth a mention. it's called Group Policy Inventory… here's the overview:
“Group Policy Inventory (GPInventory.exe) allows administrators to collect Group Policy and other information from any number of computers in their network by running multiple Resultant Set of User Policy (RSOP) or Windows Management Instrumentation (WMI) queries. The query results can be exported to either an XML or a text file, and can be analyzed in Excel.”
It's simple to use, just choose some machines that you want to target from either AD or a text file, select the information to be gathered… OS, Service Pack, Installed Apps, CPU, Disk Space and so on… and Run. [MS Exchange Blog]