LabWindows/CVI can only generate import libraries for third-party C-style DLLs, provided you have the header .h file for the DLL. The concept to remember is that CVI is a ANSI C compiler. Thus you need to ensure that you make your C++ libraries, DLLs, and header files are C compliant. By that I mean for example, is that you cannot use C++
libraries with the CVI compiler without creating a DLL and exporting
unmangled C style functions (using extern "C"). If you have any C++ classes, you need to create C style wrappers around them if you want to use them in CVI.
Additionally, check out another post here that I responded to which has some great links to tutorials and knowledgebases.