There are only a few incompatibilities with Wapp pro. Here are the ones I'm aware of :

FaxSTF : If you position Wapp pro's menu to the left of the Apple menu, some of the commands of the submenu inserted in the Apple menu by FaxSTF might be disabled.

Action Menus : Version 3.1 of Wapp pro is now "more" compatible with Action Menus. BUT I don't really recommend using both of them at the same time. If the two of them are running, you'd like to disable some of Wapp pro's options :

• Embedded in the Applications Menu ("General" pane)
• Mimic the Applications Menu ("Popup" pane)

It's also preferable to position Wapp pro's menu on the right of the menubar as it seems Wapp pro and Action Menus fight for their menu positions on the left of the menubar.

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