Looks like the zetacoin-qt.exe ignores the -datadir argument.  No matter what folder is provided, the data directory always defaults to the %AppData% folder.

If an invalid folder is provided the client will throw an error as expected, but if a valid folder is provided for the data directory argument, it is ignored.

Dev,

Can you investigate this issue?

Ref: https://en.bitcoin.it/wiki/Data_directory