Update: ActiveSync 4.x Troubleshooting Guide
Added information on how to setup ActiveSync to work with the Microsoft ISA Firewall Client. This is done by creating a wspcfg.ini file in the directory where ActiveSync is installed. A batch file to automate this for end users is also available.
Chris De Herrera
Microsoft MVP - Mobile Devices & Tablet PC
http://www.pocketpcfaq.com- The most complete set of FAQs on Windows CE
http://www.tabletpctalk.com - Get the latest Tablet PC News
http://www.pocketpctalk.com - Get the latest Pocket PC News
http://www.mobilitytalk.com - Quickly view all the Pocket PC & Tablet PC News on one page