Did you get to fix it. I have the same problem.
I'm using Windows XP. So out of the 5 folders that appear in my
unzipped 127 MB big folder (called "Xmind-
portable-3.0.2.200903221757") I choose the subfolder called "XMind for
Windows" and copy it in a folder called "F:\PortableApps\Xmind\ " on
my SanDisk U3 stick.
Than i try to start F:\PortableApps\Xmind\XMind for Windows\xmind.exe
The result is the error message mentioned by carlosA.
I found in another thread, that I would have to refresh the
applications at the U3 Launchpad. This makes sense, but I don't know
how.
Any suggestions?
Burkhard