MISSING FILE NAMED " DTMONX.EXE"

HI ALL:

THANKS FOR THE CHANCE TO AIRE THE QUESTIONS, I HAVE AN ORIGINAL WINDOWS XP
PRO, SP2 INSTALLED., AFTER TRYING I THINK TO DOWNLOAD
AN HP PRINTER SOFTWARE UPDATE., THE ABOVE FILE GOT MISSING AND THE
LOADING AND WORKING IS SLOW NOW.
WHEN I ATTEMPT TO UPDATE TO SP3., IT SEEMS THE MISSING FILE IS CAUSING THE
UNSUCCESSFUL DOWNLOAD.
1-WHAT DO YOU SUGGEST I SHOULD DO?
2-IS IT A PROGRAM FILE OR ELSE?
3-I EVEN SEARCHED OTHER PC'S FOR THE NAMED FILE, BUT NO LUCK.
4- IF I TRY TO RE - INSTALL THE WINDOWS., MY OTHER LICENSED
SOFTWARES HAVE TO BE GOING THROUGH ALOT OF HASSLES.

THANKS AND THE BEST TO YOU ALL