Easy quick notifications on Windows 7 with UAC

Question

On Windows XP I was used to create simple notifications for myself using combination of at and msg commands. The whole thing was very easy

1. hit Ctrl+R
2. type eg. at 21:00 msg * Do something
3. hit Enter

at the specified time a popup window with that message appeared.
With UAC in Win7 the at command requires administrative privileges and says that access is denied. Is there some easy, no new applications requiring way to have this?
Of course I could turn off UAC, but that seems like an overkill and is not something I would like to do because of notifications...

Answer 1

You can preface your at command with runas and authenticate. You'll need to double check the syntax, but something like:

runas /user:<localmachinename>\administrator "at 21:00 msg * Do something"