In general, the SAS macro language is
portable across operating environments. This section discusses those components of the macro
facility that have system dependencies. For more information, see
SAS Macro Language: Reference.
The following aspects
of the macro facility have details that are specific to Windows:
Note: The words CON, NUL, PRN,
COM1 through COM9, and LPT1 through LPT9 are reserved words under
Windows. Do not use these reserved words as the name of a macro variable.