I was setting up a VPC today and during the checks I got the following error:
“ASP.NET 2.0 is not installed”

Very weird. I had it installed and I tried repairing the installation and running aspnet_regiis -i on the ASP.NET 2.0 framework. After some googling I found that this was due to Microsoft .NET Framework 4.0 installed and this excellent blog explaining what was wrong and how to fix it. I did, however, have to remove the ISAPI filter for .NET Framework 4.0. Check it out here:

http://crm.vdsnickt.eu/2010/05/ms-crm-4-0-setup-error-asp-net-is-not-installed/

Gustaf Westerlund
CEO, Chief Architect and co-Founder at CRM-konsulterna AB

www.crmkonsulterna.se