For my Altiris implementation I have SQL 2005 64-bit running on a 64-bit Windows Server 2003 server. One of the most frustrating parts of getting this server properly configured was getting the 64-bit version of ASP.NET 2.0 properly configured prior to installing SQL.
Here's the steps necessary to make this happen:
To run the 64-bit version of ASP.NET 2.0, follow these steps: