Windows 7: Always remember UAC choice for an application

A trick is to use the Task Scheduler to launch the application:

Create a task for your application in the scheduler (Win+R, taskschd.msc) and launch it with schtasks /run /TN "name of your task" (or use one of the scheduler parameters)

For more info - TechRepublic:

Run UAC restricted programs without the UAC prompt

Make Vista launch UAC restricted programs at startup with Task Scheduler

There is no way in windows itself to "whitelist" certain applications. You could use the program "tweak uac" to switch really easy and quick between uac settings.

http://www.tweak-uac.com/what-is-tweak-uac/

You could also right click the icon/program you want to run and "run as administrator" it should only ask you once in uac that way.

Other option is to completely turn off uac, but it's not reccomended by microsoft nor by me.