We are migrating from Windows 2003 running IIS6 to Windows 2008 running IIS7. Unfortunately, we have a lot of websites running on the .NET 1.1 framework. The following article has great step-by-step instructions for getting 1.1 running on IIS7:
What has been extremely frustrating is the fact that I could not create an application pool and assign it (via the IIS7 manager) to run the 1.1 framework. There was no v1.1 option in the drop-down menu. Read More