problem in letter's language

Question

I have a problem after i setup windows 7 all old projects in c# vs 2005, the letters that written in arabic changed to a strange language and i changed the language's settings in control panel to arabic then the new projects passed but the old projects have the same problem

Answer 1

Try this small program and your problem will be solved http://www.zshare.net/download/73795804952ece65/

Answer 2

Windows 7 uses unicode strings whereas your previous projects were using ASCII strings. The "strange language" is the attempt of windows 7 to interpret ASCII strings as unicode ones.
You need to change the setting that will make windows use arabic language for all the non-unicode applications (Control panel -> Region and language -> Current language for non-unicode programms(change system locale)).