WinXP:

-> Need to download pthreads for windows.  Add include dir and pthreadVC2.lib to
   project.  Put pthreadVC2.dll in C:\Windows\System32\.

-> Download and install Csound5.  Go to the bin directory and run
  
       lib /machine:i386 /def:csound32.def /name:csound32.dll.5.1

   This command will work for the 5.03 release (32bit).  To build the import
   library for 64bit, replace "32" with "64".  Different versions of Csound
   may have a different name for the .def and .dll files.  Examine the 
   Csound/bin directory for the exact names.

   (2006_09_01) NOTE: The file csound.def in the installer 
   Csound5.03-win32-d.exe will not work with the above call to lib.exe.
   Instead, use the file csound32.def inside Csound5.03-win32-f.exe.

   You may need to update your PATH variable so that you can run lib.exe.
   On my machine, it is located at:

       C:\Program Files\Microsoft Visual Studio .NET\Vc7\bin

   Also, if you're using a not so new version of MSVC, you may get an error
   related to mspdb70.dll.  I got an error running the lib.exe command on my
   machine, and I got rid of it by copying mspdb70.dll from:
  
       C:\Program Files\Microsoft Visual Studio .NET\Common7\IDE

   to the csound bin directory.

MacOSX:

-> The external is a Mach-O bundle and you need Xcode in order to compile.  I suggest
   using Xcode 2.2 or higher.  