$! in case a privious submitted batchjob didn't end properly:
$ FILE = F$SEARCH("SYS$SCRATCH:MUTRACK.MESSAGE")
$ IF FILE .NES. """" THEN DELETE SYS$SCRATCH:MUTRACK.MESSAGE.* /NOCON
$ run mutrack$EXEdirectory:T-MUTRACK.EXE
$! in case MUTRACK didn't end properly:
$ FILE = F$SEARCH("SYS$SCRATCH:MUTRACK.MESSAGE")
$ IF FILE .NES. """" THEN DELETE SYS$SCRATCH:MUTRACK.MESSAGE.* /NOCON