How to run a Visual Studio on Parallels Desktop with Elevated privilages via dock icon
Try to launch devenv through runas.exe, there you can specify the user who you want. 
So you should make a shortcut with the following command:

runas.exe /user:admin "c:\PATHTODEVENV\devenv.exe


As I know it will ask your password, but then you can try the /savecred switch.

More info: 
https://stackoverflow.com/questions/8249705/how-to-run-an-app-as-run-as-administrator-from-command-prompt, and 
http://technet.microsoft.com/en-us/library/bb490994.aspx
Good Luck!