if you push a batch file with LANDesk it'll be started as Local System, so you won't see anything in your trusted site list.
Take a look here:
I have actually found two ways to do this. The easiest way is through the LANDesk package builder. you can apply registry settings to all users... See attached screen shot.
The second method is to add it here under HKLM. The problem with this method is that it does not show up in the trusted sites list, however if you go to the site, it will show the little trusted icon at the bottom.
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