How to upgrade from .NET Framework 1.0 to .NET Framework 3.5

Useful blog entry from Paul Endrew on ugrading your .Net Framework 1.0 application to .Net Framework 3.5 application:

https://blogs.msdn.com/pandrew/archive/2007/10/25/how-to-upgrade-from-net-framework-1-0-to-net-framework-3-5.aspx