You should shut everything down when installing programs.
Go to START/RUN/TYPE-MSCONFIG/OK/STARTUP/ uncheck everything but SCANREG & SYS TRAY / Yes to restart.

( This is done in selective startup )

Install your software / restart / go back into MSCONFIG and select what you want to run at startup. You don't need everything running all of the time, this also frees up alot of memory. you will notice a great increase in performance.

If you are running on a network also turn back on NAV & ZONE ALARM

Dimension 4100
P-3 733mhz 133mhz bus
384mb SDRAM
40 gig 7200rpm HD (master)
10 gig 7200rpm HD (slave)
32mb TNT 2 M64 video card
Sound Blaster Live
Sony 16X10X40 CDR/RW
Win 98 SE
Motorola SB-4100 Cable Modem
Zone Alarm

There is no need to disable Zone Alarm. I would disable NAV when downloading updates from the Windows Update Page.

Ralph Caddell

Dimension 4100 800 Mhz
384 MB PC133 RAM
Dell M781S Monitor
48X CD
Ricoh MP9120A CD-R/RW/DVD
20 g Maxtor HD 7200 RPM
30 g Maxtor HD 7200 RPM
ATI All-In-Wonder 32mb
Logitech Optical Mouse Man Wheel
SB Live Value
Altec Lansing ACS-340 Speakers w/Subwoofer
Windows ME/Windows XP Home Dual Boot
Panda Titanium Antivirus
Zone Alarm Pro Firewall
No Real Player Junk

as to the how-disable? part, when I right-click on the zonealarm icon on my system tray I get a menu that allows me to shut down zonealarm. A reboot or a trip to the start/programs menu will allow me to restart za. Bruce