usually source packages have a makefile
either a file that is simply called makefile or Makefile or (something).mak
maybe there is a makefile.Windows or a README.txt (or somthing like that)
that tells you HOW to compile the source.
you can try:
go into the directory of your source and say something like
nmake
im not using vc++, so i dont know if that nmake behaves as the gnu-make.
if there is a makefile and nmake fails, i guess there is some "import makefile" option in vc++
