We have requirementfor restricting the owner of Web mail to change the prefference settings of the mailbox. Ex. Changing the language setting etc.1 person needs an answerI do too

You would need to take this up with the webmail host. The restrictions would be set on the mailserver's webmail software.MS-MVP - Elephant Boy Computers - Don't Panic!

Thanks for quick reply. Still I am not able to get you. Can you please elaborate on this?

I interpreted your post to mean that you didn't want a webmail user to be able to change their preferences. Therefore I said that any restrictions on the webmail software would have to be done at the host's level. For example, if you wanted to limit a user's Yahoo Mail options, those restrictions would be set in the Yahoo Mail software or on its server. (Obviously Yahoo would never do this - it's just an example.) Howevever, perhaps I'm misunderstanding your question. What exactly are you trying to do? In what situation? On a domain workstation, on your webserver? You haven't provided details of your computers, your network, or what you mean by "owner of Web mail". Please clarify.MS-MVP - Elephant Boy Computers - Don't Panic!