I am using IIS 5.1, and whenever I try and view an asp page located under any web folder in my inet pub directory I get the error:

Active Server Pages error 'ASP 0201'

Invalid Default Script Language

The default script language specified for this application is invalid.

If I spend long enough playing about with script language options in IIS it eventually seems to start working, and I can view my pages. However, when I try and open one of my InterDev projects (which I am using to make the asp pages), it gives errors saying it can't open some registry key (an irrelevant one, something about the .7z file format). I am also unable to start a new web project (it tells me it can't contact localhost, or even 127.0.0.1). After playing about with options in frontpage server extensions this unable to contact error clears up, and so does the weird registry one allowing me to open my project.

As soon as I reboot though all of this is lost, and my pages don't load again. I then end up spending ages after each reboot trying to get it working again, with no guarantee that I will.

I have tried many things from google results such as assigning USR_Machinename to the admin group, reregistering dll files, changing IIS options and so on; none of these work.

Anyone got any ideas how I can get this set up reliably, so that I can get on with my uni work? It's annoying because whenever I want to spend half an hour writing an asp page I end up spending all the time trying to get IIS working, then have no time to do actually make the page! Then I reboot and lose it all again.

Any help you can offer me would be greatly appreciated.

Ps. Just found this out; if I go to the web sharing tab on the folder properties in windows explorer, then make an alias under a different name, I am able to view the asp page with this name. However, interdev still doesn't load the project.