how to allow one user program to run?

yes, we have selected the tab "run as administrator".

still the user account control do not recognize this program from "unknown" publisher.

<in that case read Nibiru's post, with which <I totally agree.

It's an office environment so you really need to leave UAC on for the added extra security.

As for setting "Run as an Administrator" works, the only difference is that it asks for permission immediately rather than at the point in the code where it tries to access a UAC protected area.

I am not aware of any way you can selectively set UAC to work for unknown programs but ignore the use of known programs. This really would be a nice feature but to my knowledge it doesn't exist.

Which means they must authorize each time, sorry.

well, lo-and-behold, another group of computers in next floor, same Win 7, same set up User Account Control (to 2nd from top), but this same program can run using same short cut without any UAC warning dialog box? What gives?

The only thing I can think of is maybe the users on the other floor have been given Full Control and Read, etc in the Permissions of the folder where this is writing? Can you ask the network administrator for that floor what privileges he set up for them?

This is network administrator stuff, of which I am no expert. Basically the users get assigned to a group and then on the effected folder right-click and pick the security tab, choose edit, and you either add the individual users or, more likely in an office environment, these people have all been assigned to a GROUP and you add the group to the security permission and check the tabs for Full Control, etc (But generally not Special Permissions).

If you get that far then, back on the executable they are having trouble with, try it without "run with administrator privileges" set and see if that works. If not, then try with it checked and see if they get the click OK permissions box.

If it is the registry they must have permissions to, then this may help but I personally don't understand it all. This also has good pictures of the permissions windows I was talking about above. This is Network Administrator stuff and they get paid big bucks because this crap is so complicated...
http://www.mydigitallife.info/2009/0...or-in-regedit/

wow, now we understand why.
all we have to do is put this program in C drive.
then, the shortcut will execute without this warning dialog.

well, after running this for awhile, the same problem comes back.
Now, we have to click the dialog panel every time we run the program. Everyday, every time, all the time. What a hassle. Thank you Microsoft.