SPYSHR is a callable entry point in a protected shared image which
   allows you to call SPY as a subroutine, from your own programs and
   menus. Note that SPY.EXE calls this SPYSHR passing it the command
   line which was entered as a DCL foreign command.

   The arguments are the same as those for PEEKSHR except that commands
   passed to SPYSHR must begin with the verb SPY in the PEEKCMD argument.