Setting my 1.1 applications to run under .NET 2.0 in IIS

I have a bunch of web applications on my webserver. Can I safely change my IIS to run 2.0 on all these apps? I've been experiencing a memory problem / crashing and hoping theres a chance running under 2.0 helps. I am currently upgrading my 1.1 code to 2.0 but its going to take a couple weeks to fix problems.
Any possible benefits I could get ? Any possible problems?

Thanks!
mike123MS has written a useful Web page for this query and others!
According to the migration Web page at MS, ASP.NET 2.0 is backwardscompatible with 1.1, so if you uninstall the .Net 1.1 FW and install2.0, the Web app should still run as expected. (FW: Framework). Let meknow how you get on.
http://msdn.microsoft.com/asp.net/reference/migration/upgrade/default.aspx?pull=/library/en-us/dnvs05/html/migratefromaspnetto2.asp

Hi bluekiwi
Yes I did read that . I am wondering what is best practice? Are they recommending everybody upgrade the process to run as 2.0 ?

In my opinion, the answer is: "It depends."
Can anyone answer this question: Will Visual Studio 2003 work under.Net FW 2? Can I still develop apps for 1.1 even though 2.0 isinstalled and going to be the runtime?

If your dev machine is 2003/1.1 and your Server is 2.0 you should be fine.
You can't use 2003 to dev apps with the 2.0 framework, you have to use 2005, but your 2003/1.1 app should still run fine under the 2.0 framework on the server.
Well the way it sounds is to keep it running under 1.1 ...... "should run fine " doesnt sound as good as "might pick up some performance benefits" .. correct me if I'm wrong
thanks!

I take it that the same applies when the dev machine is also the server.
So, if I have got VS 2003 and 1.1 with IIS 5 (XP Pro) and I getFramework 2.0 and install it, I should notice no difference at all?
Should I install VWD and, according to another post, set the applicable directory in IIS to use 2.0 rather than 1.0(Ilearn there is a versioning tab on the directory, allowing for settingthe framework version that is going to be operating on that IISdirectory), I will be running Web apps for 2.0 and yet, also on the same machine, I can be building Web apps for 1.1.