spoolsv.exe =a service that stores printer jobs and forwards them to the printer when it is ready,
it also can be virus releated depending on where its located on you computer ,if you have hijackthis [if not download it in my signature ]on your compute run it and post a log .

Logfile of HijackThis v1.97.7
Scan saved at 9:51:34 AM, on 5/20/2004
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\AvidSDMService.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\DefWatch.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\Rtvscan.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\system32\ssoftsrv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\MSN\MSNIA\dslmon.exe
C:\WINDOWS\System32\taskswitch.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
F:\PROGRA~2\ZONELA~1\ZONEAL~1\zlclient.exe
F:\Program Files\TrojanHunter 3.8\THGuard.exe
C:\WINDOWS\System32\RUNDLL32.EXE
F:\Program Files\SpywareGuard\sgmain.exe
F:\Program Files\SpywareGuard\sgbhp.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\PROGRA~1\AIM95\aim.exe
F:\Program Files\Hijack This\HijackThis.exe

O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - F:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: SpywareGuard Download Protection - {4A368E80-174F-4872-96B5-0B27DDD11DB2} - F:\Program Files\SpywareGuard\dlprotect.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [DSL Connection Tool] C:\Program Files\MSN\MSNIA\dslmon.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [CoolSwitch] C:\WINDOWS\System32\taskswitch.exe
O4 - HKLM\..\Run: [UpdReg] C:\WINDOWS\Updreg.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [Zone Labs Client] F:\PROGRA~2\ZONELA~1\ZONEAL~1\zlclient.exe
O4 - HKLM\..\Run: [THGuard] "F:\Program Files\TrojanHunter 3.8\THGuard.exe"
O4 - HKCU\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\System32\NVMCTRAY.DLL,NvTaskbarInit
O4 - HKCU\..\Run: [Jet Detection] C:\Program Files\Creative\SBAudigy\PROGRAM\ADGJDet.exe
O4 - Startup: SpywareGuard.lnk = F:\Program Files\SpywareGuard\sgmain.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://F:\PROGRA~2\MICROS~1\Office10\EXCEL.EXE/3000
O9 - Extra 'Tools' menuitem: MaxSpeed (HKLM)
O9 - Extra button: AIM (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Windows Messenger (HKLM)
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {02BCC737-B171-4746-94C9-0D8A0B2C0089} (Microsoft Office Template and Media Control) - http://office.microsoft.com/templates/ieawsdc.cab
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://www.apple.com/qtactivex/qtplugin.cab
O16 - DPF: {2359626E-7524-4F87-B04E-22CD38A0C88C} (ICSScannerLight Class) - http://download.zonelabs.com/bin/free/cm/ICSCM.cab
O16 - DPF: {4169B5A0-9048-11D6-BDFF-00C0F024AF20} (ActiveXTester.TesterControl) - http://www.jasons-toolbox.com/Browse...iveXTester.ocx
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2...ll/xscan53.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://www.pandasoftware.com/activescan/as5/asinst.cab
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.co...947.7328819444
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/s...sh/swflash.cab

Here is my Hijack log.
Also, I don't even have a printer attached to this computer, never have. :cry:

Also, my Ad-aware keeps freezing. It will start the scan, get to about 14,858 files scanned, then freeze up. Any ideas on this?

the log looks clean ,not sure why you adaware freezes ,berhaps try running it in safe mode .
As for the spoolsv.exe it part of winxp ,it doesent mater if you ahve a printer installed ,not sure why you would be getting the error message .

Reboot to SAFE mode to run Adaware
How to start computer in safe mode

What about my Adobe that keeps crashing when I open? A friend said it might have something to do with the registry. But why does it work in one account, but not in the other one?

Sarah, how long have you been running windows XP on thats computer, because all windows OS start to break down after a few years. Also, do you get the latest windows updates from windowsupate.microsoft.com?

I just reinstalled about 6 months ago, and I got all the updates today