I'm a bit slow on the reply here... anyways... Forget what everyone else says - make it sexy~!
Server-side still works better - file extensions etc. are irrelevant. Try one of these:
Method #1
1) Go into Internet Information Services
2) Expand the web site
3) Right click on the properties for the file you want redirection for
4) In the File tab select "A redirection to a URL"
5) Enter the URL in the "Redirect to:" input field.
6) Select "The exact URL entered above"
7) Click Apply
This will redirect for the one file that you want, and people's bookmarks will still work.
Method #2
1) Go into IIS
2) Right click on the web site and select Properties
3) Click the Home Directory tab
4) Click Configuration near the bottom
5) Click the App Mappings tab (selected by default)
6) Click Add
7) Browse to and select asp.dll (It should be in C:\WINNT\system32\inetsrv)
8) Click Open
9) Enter "html" (Or anything you want, e.g. bluefrog for "index.bluefrog")
10) Select the "Limit to:" and enter "GET, POST, HEAD, TRACE"
11) Check "Script engine" and "Check that file exists"
12) Click OK.
That will let you run *.html or *.htm or *.I_am_drop_dead_sexy_-_Look_at_my_sexy_body as *.asp files.
Abuse this knowledge in good health~! And just remember, Bluefrog has the original 110% pure sexy asp~!
Cheers