batch file calling exe file problem

> I am running Vista Enterprise. I created a batch file that collects
> information relative to the DD.exe program that I use to make a datadump of
> the memory. When I run the batch file, it will start the execution of the
> DD.exe program, however the system prompts me to enter a logon name and a
> password for a Vista User. I think that it has somthing to do with the new
> security protocols in Vista. Can anyone help with this.
>
> Thanks
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