Yes, if you install stuff to your SD, it should all be installed on your SD as far as I know. There may be some exceptions.
So, install the cab. Use Total commander or whatever and go to \Windows\Start Menu\Programs (or wherever the shortcut for the app is located) and copy the shortcut to your SD. The shortcut should be in the form of appname.lnk. Now, collect these links on the SD in a folder called Shortcuts or whatever you want. Then use the config.txt to copy the link from the SD to the proper file on boot.
Example:
I just installed a golf game to my SD.
I go to \Windows\Start Menu\Programs\Games and copy Golf.lnk to \Storage Card\Shortcuts
Now add this to your config.txt
Code:
CPY1:\Storage Card\Shortcuts\Golf.lnk
CPY2:\Windows\Start Menu\Programs\Games\Golf.lnk