#ifdef WIN

   .Periodically check of other apllication in progress.

      AT command support periodically execution of some command sequence.
      For example,to display tail 20 line of output file of an application,
      enter "b outfile;AT 5 ;end;b outfile 20t-".
      SLEep command may be used.
      For example,enter following,you may get same effect as above.
      "AT 1 ;b outfile 20t-; sle 4;end"

#endif