Unregister .Net 1.1 from IIS
by admin on Mar.27, 2008, under Software, Systems
So if you are running Windows 2003 with IIS 6 and all of your web applications are running ASP .Net 2.0 you might want to get rid of .Net 1.1.
Well with Windows 2003 it isn’t easy or advisable to completely remove .Net 1.1 but you can unregister is from IIS having the same affect as far as your websites are concerned.
You need to open up the command prompt and go to the path .Net is installed in. Typically is C:\Windows\Microsoft.NET\Framework\v1.1.4322\
If you have other versions of .net installed you will see all the versions under Framework as well, be sure to go into the 1.1 directory.
From the command prompt in that directory type the command “aspnet_regiis.exe -u”
This will unregister this version of the framework with IIS and in turn IIS will not see it. You will want to do a reboot to make sure everything comes up clean afterwards.
Also make sure that you do not have any websites using .Net 1.1 because you will most likely mess it up when it is forced over to .Net 2.0
