Whats the autorun code for portableapps??

One way to prevent the autorun from being deleted (if you have a U3 drive) is to use universal customizer(here) to change the disk partition to smithtech's App Launcher. That way you don't need autorun.inf.

After you have installed Suite. It will have a Autorun.inf in your installed location. If you are not install it in the top of your drive(it mean you install in under the folder), it won't work.

Also, the Autorun.inf is hidden, if you set that hidden the hidden documents. You shouldn't tick the box in the setting.

If there is no Autorun.inf, you should create one yourselves.
*Code:

[Autorun]
Open={The folder your put the PortableAppsMenu.exe}\PortableAppsMenu.exe
Action=Start PortableApps
Icon={The folder your put the PortableAppsMenu.exe}\PortableAppsMenu.exe
Label=PortableApps

The folder your put the PortableAppsMenu.exe is usually in {the folder you installed the Suite}\PortableApps\PortableAppsMenu\

P.S.:
You don't need to write down your drive location in {The folder your put the PortableAppsMenu.exe}