Christophe sent me a link to this .. a couple of new tools I have not played with ;-)
One of the great things about working with Exchange Server is the wealth of available support tools. For virtually every area of administration or management, you can find tools—some commercial, and some free; some from Microsoft, some from third party vendors—that make your life easier
The first tool is the Performance Analysis of Logs (PAL) tool
The second tool .. is a set of tools and associated processes for figuring out what’s happening on an Exchange server given a set of transaction log files
Interesting topic on Technet
This topic provides guidance about the most useful performance counters to monitor that are common among all Microsoft Exchange Server 2007 server roles. When monitoring Exchange 2007 servers, you should know which performance aspects are most important. The common counters and threshold values detailed in this topic can be used to proactively identify potential issues and help identify the root cause of issues when troubleshooting.
Interesting but Oooops! .. I like the note at the end “Microsoft will not be providing any hotfixes, engine updates, or program fixes to automatically correct this issue.”
Microsoft is aware of an issue with the Microsoft AV engine not updating on some installations of Antigen and Forefront Server Security products. Not all installations of the products are experiencing this issue, however all products may be affected.
The issue arose because the aveMicrosoft.dll in one of the Microsoft AV engine updates was marked as hidden, causing all subsequent updates to fail when attempting to delete this file. When that occurs, the engine is rolled back. This means that installations experiencing this problem are running with an outdated version of the Microsoft AV engine.