Directory Opus doesn't recognize PoratableApps USB stick

Hello,

I've just tried to export Directory Opus (10.1.0.0.4570) to an USB stick with PortableApps (10.1.2) but Directory Opus doesn't seem to recognize PortableApps on the stick. At least the PortableApps folder structure wasn't created when I exported Directory Opus to the stick.

Best regards
Martin

Is PortableApps installed on the stick in an unusual way or somewhere other than the default location in the root of the stick?