None WWW to WWW - How to use ISAPI Rewrite?

[Manpasand]

How can I redirect

http://domain.com/;
http://domain.com/index.html and
http://www.domain.com/index.html

TO http://www.domain.com/ using ISAPI Rewrite?

I have tried examples but didn't work.

[Obosh]

i think you can do ti safely using htaccess file....
google"301-redirects-and-canonical-urls" you will probably find the solution.....
i had very bad experience when i changed from non www to www....

if you pages are indexed then this change will effect your SERP as well as traffic....google takes time to solve this problem....
so, handle the problem carefully....