Can I use a HttpHandler or HtppModule to set the value of the ServerVariables REMOTE_USER or LOGON_USER?  I want to be able to set it to a specific value and then retrieve the value using Request.ServerVarible("REMOTE_USER") in my ASPX code behind.

I tried a test, and got the follwoing exception.

Server Error in '/' Application.
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Cannot directly modify server variables.

So you can not write to it diretly. You might consider using the

HttpContext.Current.Items["REMOTE_ADDR"] = "123.123.123.123";

syntax. This lets you set the values in your handler/module, and they'll be available anywhere in the rest of your asp.net request.

Hi 

 I wanted to set the server variable  and have tried using context.Items["LOGON_USER"] = "SOME USERNAME"; But when I do request.servervaraibles["LOGON_USER"] it shows the domain\username value and not "SOME USERNAME". How do I acheive this? How to set server variables?

 Thanks