displaying unicode characters (help)

I have a program in C++ which works perfectly when displaying english, but with other character sets it mangles it up, usuallly putting a à character first then the second one of the double byte next. I am figuring that wanting to render other chracter sets is something that has been many 1000's of times in the past. So I would like to hire someone to do such work for me? Does anyone have such experience of doing that? This is a GUI project, not a command line/console one. I require to display/render the other character sets on windows forms. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Windows C++