Windows Forms UserControl Hosted in IE now loads in 2.0 framework instead of 1.1 on dev box

[Keith]

Please help.

I've been developing a windows forms user control to be hosted in
IE/ASP.NET. The control is developed in .NET v1.1, and for now I'll need to
keep it in that version. Recently I installed .NET 2.0. Now the control
loads into .NET 2.0 instead of 1.1 (per System.Environment.Runtime) on my
development box. I'm using an app.config file that I'm pulling into the aspx
page using a <link> element. In that config file I'm specifiying v1.1, like
so, but it has no effect:

<startup>
<supportedRuntime version="v1.1.4322"/>
</startup>

How can I force IE to load the control using .NET 1.1 instead of 2.0? Thanks
for your help.

Keith

 

[Andrew Robinson]

IE is unable to determine which version of the Framework your control was
written against. It will therefor always run against the latest version
installed on your machine. In this case, 2.0.

The channel 9 video details it:

http://channel9.msdn.com/Showpost.aspx?postid=73151

Might find some info here:

http://msdn.microsoft.com/netframew...=/library/en-us/dnnetdep/html/netfxcompat.asp

 

[Keith A]

Thanks Andrew.

That doc you cited says on a box with both 1.1 and 2.0 Internet Explorer
"Loads with 2.0 unless the process is configured to run against 1.1". Do
you know how to configure the process to run against 1.1? It makes
testing much less convenient. Thanks again.

Keith

 

[Keith]

Here's Andrew's post. For some reason it's only showing up on
developersdex.com.
-------------------------

IE is unable to determine which version of the Framework your control was
written against. It will therefor always run against the latest version
installed on your machine. In this case, 2.0.

The channel 9 video details it:

http://channel9.msdn.com/Showpost.aspx?postid=73151

Might find some info here:

http://msdn.microsoft.com/netframework/default.aspx?pull=/library/en-us/dnnet
dep/html/netfxcompat.asp

 

[Andrew Robinson]

Keith,

I haven't watched the video in a while, but they talk about 3 or 4 different
cases:

1. Asp.net and windows forms. Pretty standard stuff and you can configure
which version of the framework you run against.

2. Hosted CLR within SQL. I got the idea that Microsoft is reserving the
right to say that your code will always run against the version of the
framework that it was built against. Build it against 2.0 and only have 3.0
installed on your machine (at some later date), your code will not run?

3. I believe they talked specifically about the case of controls running
within IE (or another hosted app) and how your controls will always run
against the latest version of the framework that is installed on your
machine. I believe you are in this category. You cannot configure the
version that you run against and will get 2.0 assuming you have installed
the 2.0 version of the dotnetfx.

Hope this helps.