I am trying to install Hard Drive Mechanic Gold (I guess it's a DOS program) on a win98 OS PC. When I attempt to execute the .exe file I get the following error: Found Extended Memory Handler. Reboot without XMS driver. How do you disable or delete the XMS driver without rebooting problems. My previous question and and solution got me out of a crashed PC when I made some editing changes to the c:\windows HIMEM.sys file. I understand that HIMEM.sys is the XMS driver, but when I REM the file my PC would not boot with error: HIMEM,sys is missing or corrupt. Replace HIMEM.sys and reboot. I replaced the file and I am up and running again (thanks to Teckiedog). I have a crashed hard drive on another PC and I want use Hard Drive Mechanic to fix it.