Do you have IIS on Windows 64 bit and want to run application that is for 32 bit. No problem. From the Inetpub admin scripts run the following: " cscript.exe adsutil.vbs set W3SVC/AppPools/Enable32BitAppOnWin64 true" Here are the details. Windows Server 2003 TM , Service Pack 1 enables IIS 6...

If you are interested in AD performance on 64 bit you shoud read this great guide http://www.microsoft.com/downloads/details.aspx?FamilyID=52E7C3BD-570A-475C-96E0-316DC821E3E7&displaylang=en