As we use MS Visual Studio 2K5 to compile our VRAPI.DLL, so you will not be able to compile your Borland C++ project by using VRAPI.lib in lib folder.
You can use coff2omf.exe in BCB/bin folder, to convert VRAPI.lib to VRAPI-bcb6.lib, so you can use VRAPI-bcb6.lib to link with your project, in Borland C++ 6 or RAD Studio XE
