Thank you for your answer but is there any other option that we can
solve it by changing the settings of IIS...
Moris

Brian Desmond [MVP] wrote:[vbcol=seagreen]
> IIS must be making the translation internally from the UPN to the
> sAMAccountName. It's not hard to get the UPN given the WindowsIdentity
> object that you have at hand, and relying on the UPN for the user's true
> name is bad programming practice IMHO.
>
> My recommendation is to search AD for that user's object in the directory
> and retrieve the first and last name properties or whatever else you need 
in
> your code.
>
> --
> Thanks,
> Brian Desmond
> Windows Server MVP - Directory Services
>
> www.briandesmond.com
>
>
> "MaURiCe" <mkastro@gmail.com> wrote in message
> news:1157462878.505088.151490@m73g2000cwd.googlegroups.com... 

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