Note: There is a bug in compiz with the handling of this but there is also a bug in the invest-applet marking itself as a dock type window when it isn't. You can see this by running the metacity compositor and noticing you can't see a shadow for this window if there is another window under it, the same as in compiz. If the invest-applet bug is fixed it will work around the bug in compiz so we don't have to worry about it.
Note: There is a bug in compiz with the handling of this but there is also a bug in the invest-applet marking itself as a dock type window when it isn't. You can see this by running the metacity compositor and noticing you can't see a shadow for this window if there is another window under it, the same as in compiz. If the invest-applet bug is fixed it will work around the bug in compiz so we don't have to worry about it.