Installing Exchange 2003 SP1

Be sure to install the GZIP patch first:
http://blogs.msdn.com/exchange/archive/2004/05/28/143941.aspx

Then follow Susan’s notes:
http://www.sbslinks.com/exchange.htm

After installing Exchange SP1 you may need to make these changes:
http://www.sbslinks.com/domain.htm

Also, if using RPC over HTTP, be sure to review updated deployment notes that reflect Exchange 2003 SP1:
http://www.microsoft.com/downloads/details.aspx?FamilyID=ef58395d-3710-49cf-9698-938e2bef39e8&DisplayLang=en

http://blogs.msdn.com/exchange/archive/2004/05/28/143941.aspx