如何从visual studio 2003瞄准更高的。net框架

I am a java developer and know very little about .Net. I am working on project which has some screens built using the .Net FrameWork. Recently, client updated to IE11 and now they are facing some .net exception related to Systems.Windows.Form while right clicking on any page. After some research I realized this is an existing issue with .net 1.1 framework. Can I point to Systems.Windows.Form.dll of some higher version of .net as I have other versions also installed on my system.I am a java developer and know very little abou