Adapt a DLL written in Visual C++ 2003 to work with ANSI characters.

Another urgent project we currently have is adapting a 7zip compression library (written in Visual C++ 2003/also called Visual Studio .NET 1.1) to work with ANSI characters. This library have to work with a greater program, which is ansistring only. This causes two problems: 1) When the 7zip compression library is used for extraction, it cannot properly match file names passed to it for extraction, against the files actually contained inside the archive - because it improperly converts ANSI file names to literal Unicode representations (instead of converting the Unicode representations to ANSI, thus helping match the provided data). 2) When the 7zip compression library is used for compression, it fails to recognize that file names passed are lossy ANSI representations; again it interprets them as literal Unicode values and thus fails to properly find the files to add from the local file system. 3) The 7zip compression library archive enumeration converts lossy Unicode to ANSI conversion, contributing to the above problems. It should be a simple matter of revising internal string conversions to enable lossy ANSI/Unicode conversions and matching; for both the compression and extraction phases. This is a very urgent project at the moment UPDATE: I got some infos, that the old wrapper might not be working at all... So, might be better to write a new one instead of fixing the old one. and slightly changing the course we have now: 1. taking the last version of 7zip Framework 2. adopting existing wrapper to use it 2(b). creating new wrapper 3. we have working project; and even there's a chance that character issue is solved. here is a link to the old code with some examples of archives which do not work properly: [login to view URL]