Re: A strange problem with Service ...

From: JJ (jjjj_at_nospam.com)
Date: 06/16/05 

Date: Wed, 15 Jun 2005 22:17:08 -0400

Impersonating a user does not map HKEY_CURRENT_USER. Try calling
LoadUserProfile().

"Polaris" <etpolaris@hotmail.com> wrote in message
news:u$1IJ3gcFHA.1556@TK2MSFTNGP10.phx.gbl...
> Hi:
>
> I have a very strange problem and could not make any sense out of it:
>
> I wrote a Windows service program (Win-XP). The program impersonates the
> loggedon user (a user with only "Guest" privilege) and access user's
> registry settings from HKEY_CURRENT_USER.
>
> I found out that the program works (which means successfully read values
> from the HKCU) ONLY if I pop up a message box (by calling MessageBox(...),
> does not matter what is shown by the message box) in the service program
> before the impersonating codes. If I do not show the message box in the
> service, I get error "File not found" while trying to read the registry
> values under HKCU. Reproducible each time.
>
> Why does popping up a messagebox make such a difference? Any hints
> welcome.
>
> Thanks In Advance !
> Polaris
>

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