FirewallDisableNotify

First of all, I have a Windows XP operating system. The title I chose comes from one of the problems I am experiencing. I have had automatic updates disabled (and am unable to re-enable them, I'm being stopped). My firewall has been disabled, but I am allowed to re-enable it. Every time I try to open anything, I am given an "Open With..." prompt, and even when I choose the right program, my antivirus/malware programs still won't run. And my PC is running VERY slowly, though I don't have much stored on it.
I am on a computer with multiple user profiles, and most of these problems are contained to one with the exception of Automatic Updates being disabled for all and being really slow. Which leads me to believe that even if I were to delete that user profile, the problems would not go away.

I am not entirely sure how to pull up logs from AVG or Spybot, so I'll give what they found first.

AVG deleted the following files:
...Local Settings\Application Data\bmc.exe
...Local Settings\TEMP\RF4N71.exe
...SYSTEM32\5hr4t.dll

Spybot fixed the following problems:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusOverride
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\FirewallOverride

And my MalwareBytes log:
Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 6436

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

4/24/2011 11:44:17 PM
mbam-log-2011-04-24 (23-44-17).txt

Scan type: Quick scan
Objects scanned: 203428
Time elapsed: 8 minute(s), 54 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 18
Registry Values Infected: 4
Registry Data Items Infected: 6
Folders Infected: 2
Files Infected: 3

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars\{137E6E5E-A205-4657-A49F-1AB865787089} (Adware.SmartShopper) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{2BA1C226-EC1B-4471-A65F-D0688AC6EE3A} (Adware.SmartShopper) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{3CC3D8FE-F0E0-4DD1-A69A-8C56BCC7BEBF} (Adware.SmartShopper) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Extensions\{3CC3D8FE-F0E0-4DD1-A69A-8C56BCC7BEBF} (Adware.SmartShopper) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{3CC3D8FE-F0E0-4DD1-A69A-8C56BCC7BEC0} (Adware.SmartShopper) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{7370F91F-6994-4595-9949-601FA2261C8D} (Trojan.BHO) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{19127AD2-394B-70F5-C650-B97867BAA1F7} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{19127AD2-394B-70F5-C650-B97867BAA1F7} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{3446AF26-B8D7-199B-4CFC-6FD764CA5C9F} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{3446AF26-B8D7-199B-4CFC-6FD764CA5C9F} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{43BF8CD1-C5D5-2230-7BB2-98F22C2B7DC6} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{43BF8CD1-C5D5-2230-7BB2-98F22C2B7DC6} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{4776C4DC-E894-7C06-2148-5D73CEF5F905} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{4776C4DC-E894-7C06-2148-5D73CEF5F905} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{494E6CEC-7483-A4EE-0938-895519A84BC7} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{494E6CEC-7483-A4EE-0938-895519A84BC7} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\SmartShopper (Adware.SmartShopper) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\SmartShopper (Adware.SmartShopper) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Extensions\CmdMapping\{3CC3D8FE-F0E0-4DD1-A69A-8C56BCC7BEBF} (Adware.SmartShopper) -> Value: {3CC3D8FE-F0E0-4DD1-A69A-8C56BCC7BEBF} -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Extensions\CmdMapping\{3CC3D8FE-F0E0-4DD1-A69A-8C56BCC7BEC0} (Adware.SmartShopper) -> Value: {3CC3D8FE-F0E0-4DD1-A69A-8C56BCC7BEC0} -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Extensions\CmdMapping\{3CC3D8FE-F0E0-4dd1-A69A-8C56BCC7BEC0} (Adware.SmartShopper) -> Value: {3CC3D8FE-F0E0-4dd1-A69A-8C56BCC7BEC0} -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Extensions\CmdMapping\{3CC3D8FE-F0E0-4dd1-A69A-8C56BCC7BEBF} (Adware.SmartShopper) -> Value: {3CC3D8FE-F0E0-4dd1-A69A-8C56BCC7BEBF} -> Quarantined and deleted successfully.

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\FIREFOX.EXE\shell\open\command\(default) (Hijack.StartMenuInternet) -> Bad: ("C:\Documents and Settings\Christina Ehlers\Local Settings\Application Data\bmc.exe" -a "C:\Program Files\Mozilla Firefox\firefox.exe") Good: (firefox.exe) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\FIREFOX.EXE\shell\safemode\command\(default) (Hijack.StartMenuInternet) -> Bad: ("C:\Documents and Settings\Christina Ehlers\Local Settings\Application Data\bmc.exe" -a "C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode) Good: (firefox.exe -safe-mode) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\shell\open\command\(default) (Hijack.StartMenuInternet) -> Bad: ("C:\Documents and Settings\Christina Ehlers\Local Settings\Application Data\bmc.exe" -a "C:\Program Files\Internet Explorer\iexplore.exe") Good: (iexplore.exe) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusDisableNotify (PUM.Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify (PUM.Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\UpdatesDisableNotify (PUM.Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
c:\program files\AVGT (Rogue.AntivirusGT) -> Quarantined and deleted successfully.
c:\WINDOWS\system32\lowsec (Stolen.data) -> Quarantined and deleted successfully.

Files Infected:
c:\documents and settings\jim ehlers\local settings\Temp\aux0jcf+.exe.part (Rogue.Installer) -> Quarantined and deleted successfully.
c:\documents and settings\christina ehlers\local settings\Temp\0.35374869555697397.exe (Trojan.Dropper) -> Quarantined and deleted successfully.
c:\documents and settings\christina ehlers\local settings\Temp\0.3318852062558064.exe (Trojan.Dropper) -> Quarantined and deleted successfully.

Thank you for taking the time to look over this. I appreciate ANY help that you may be able to give me. Thank you and have a wonderful day :)