title: Unable to run website with ASP.Net version 1.1; while 4.0 works
body: <p>ASP.Net application (Version 1.1) that was working fine in live environment.  </p>
  
  <p>I encountered a problem all of a sudden that some of the functionalities stopped working.  I tried simulating the problem in test environment.  I found it is with ASP.Net version under IIS -> Websites -> Mywebsite -> properties -> asp.net tab -> asp.net version.  Changing that version from 4.0.xxxx to 1.1.xxxx worked.</p>
  
  <p>But when i did the same in live, it isn't.<br>
  I tried browsing the page and i get the message saying "page cant be found".<br>
  I ran "<code>C:\Windows\Microsoft.Net\Framework\v1.1.xxxx\aspnet_regiis -u</code>" first <code>C:\Windows\Microsoft.Net\Framework\v1.1.xxxx\aspnet_regiis -i</code> after that.  </p>
  
  <p>Once this registration is over, I checked the asp.net version in the iis for Mywebsite, it got changed back to 4.0.xxxxx  I really dont know why it's happening. 
  I could access the pages with 4.0.xxxxx but i will need them to be accessed with 1.1.xxxx</p>
  
  <p>Can someone throw some light please? </p>
  
  <p>Environment: Windows Server 2003</p>