https://bugs.winehq.org/show_bug.cgi?id=38573
--- Comment #2 from Henri Verbeet hverbeet@gmail.com --- سلام
(In reply to Bruno Jesus from comment #1)
Maybe the information from bug 21036 can help.
Specifically, the part about making sure you're using an appropriate locale like fa_IR.UTF-8.
Also, wine 1.7.3 is nearly 2 years old at this point, please try with a more current version like 1.7.43. Does the application by any chance have a demo or free download that can be used to reproduce the issue?