PPWIZARD is a free preprocessor for HTML, REXX, Visual Basic or any text files.
This variable indicates the generic operating system you are running on and is probably one of the following values:
If you need to know which version of Windows or UNIX etc you are on you will need to look at the "<?OpSysSpecific>" symbol.
This is a Standard Definition which always exists (you don't need to #define it). Note that you can create your own variations or completely new ones (see the examples).