How widespread is Framework 1.1.4322?

We are about to design an application, which will used by 10,000
people world-wide, mainly hospitals, doctors and scientists. There
will be multiple language Versions.

The app will be about 1 MB, it will be distributed via download.

Now we are considering to write it in C#, with .Net 1.1.4322

However, my biggest concern is about how widespread the Framework is.

My concerns are:
- the dotnetfx.exe is 23 MB
- you must use the language version which matches your OS language
- you must have admin rights

I have big concerns that the whole setup procedure will be too
complicated for users and therefore the app will not be accepted.

I'm already tending to go back to VB 6.0 just for these issues.

What are you experiences with distributing the .Net Framework ?

Any opinion is highly appreciated!

Thanks in Advance

Georg Scholz
www.scholz-informatik.at