http://bugs.winehq.org/show_bug.cgi?id=9967
--- Comment #10 from Louis Lenders xerox_xerox2000@yahoo.co.uk 2007-10-18 05:59:37 --- i did a bit more testing and i can reproduce your error now. I removed ~/.wine, and did:
export LC_ALL=it_IT wine setup_xop211.exe
Now i run into the same bug as you do. Must have something to do with your italian locale i guess. To confirm you could try setting to a different one, and then install the application again on a new ~/.wine e.g
mv ~/.wine ~/.wine_backup export LC_ALL=nl_NL wine setup_xop211.exe wine "C:\Program Files\XOP2.1\xop.exe"