Internet Explorer MSHTML.EXE error

Hi All,
I have a user of an XP computer that is getting an error message everytime she opens Internet explorer.  She receives an error message that Internet Explorer has encountered an error message and needs to shutdown.  When I look at what has failed, it shows that the mshtml.dll file has failed.  I have tried the normal things of deleting cookies, temporary files, disabled popup blockers, anti-spyware.   Is there a way to reinstall just Internet Explorer on an XP computer.  Otherwise, the computer is behaving fine.

Any help would be greatly appreciated.

Scott
smprossAsked:
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Pete LongTechnical ConsultantCommented:
Hi smpross,
You may be infected with Backdoor.IRC.RPCBot.G See http://www.symantec.com/avcenter/venc/data/backdoor.irc.rpcbot.g.html

PeteLong
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Pete LongTechnical ConsultantCommented:
Click Start, and then click Run. (The Run dialog box appears.)
Type regedit

Then click OK. (The Registry Editor opens.)


Navigate to the key:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
In the right pane, delete the value:"Win32 Process Host"="mshtml.exe"
Navigate to the key:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnceEx
In the right pane, delete the value: "Win32 Process Host"="mshtml.exe"
Navigate to the key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
In the right pane, delete the value: "Win32 Process Host"="mshtml.exe"
Navigate to the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
In the right pane, delete the value: "Shell"="Explorer.exe mshtml.exe"
Navigate to the key:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
In the right pane, change the value:
"Userinit"="C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\system32\mshtml.exe"
to "Userinit"="C:\WINDOWS\system32\userinit.exe,"
Navigate to the key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TFTPD\
Parameters
In the right pane, delete the value:"Directory"="C:\WINNT\System32..."
Navigate to the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\InitDLLProc
In the right pane, delete the value:"Win32 Process Host"="svchost.exe"
Navigate to the key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
InitDLLProc
In the right pane, delete the value:"Initial"="1"
Exit the Registry Editor.
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rpggamergirlCommented:
Very likely that the bad entries will show up in Hijackthis log.
Hijackthis can edit the registry for you, :)

Please download HijackThis 1.99.1
http://www.cyberanswers.org/forum/uploads/HijackThis1991.exe
Open Hijackthis, click "scan and save a logfile" don't fix anything yet, just upload the logfile created, go here and paste your Hijackthis log, http://www.rafb.net/paste/
then at the bottom left corner click "paste"
Copy the address/url and post it here:

Or copy and paste the log at;
http://www.hijackthis.de/ 
and click "Analyse", "Save".  Post a link to the saved list here.
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smartjen4uCommented:
MSHTML.EXE Application/Process Description
Below is a description of MSHTML.EXE. This application may not be safe to have on your computer. If this application is running on your computer, it is advised that you scan your computer for both viruses and spyware/adware immediately.

download http://www.superadblocker.com/downloadfile.html?productid=SUPERADBLOCKER to download Super Ad Blocker to block and remove MSHTML.EXE and over 1500 harmful applications. Now includes SuperAntiSpyware to detect and remove these harmful applications!

for solution download and run either any of the softwares listed below

Win Tasks
http://www.lidownloads.com/partners/sites/windowsstartup/wintasks/

or

SUPERADBLOCKER
http://www.superadblocker.com/downloadfile.html?productid=SUPERADBLOCKER

now your problem will be surely solved !

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smprossAuthor Commented:
I checked all of those registry entries... And none of them existed.  I also ran a virus scan and did not find any viruses.

Any other suggestions?

Scott
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Mohammed HamadaSenior IT ConsultantCommented:
Hello              .....
Download the        file from the following link :-
http://www.dll-files.com/dllindex/dll-files.shtml?mshtml

Reboot to safe mode, goto c:\windows\system32\
Then delete the mshtml.dll from the system32 directory and copy the new downloaded file.

If this doesn't work then reinstall IE manually, Download this script on your desktop and run it....

http://www.kellys-korner-xp.com/regs_edits/xp_run_ie_setup.vbs 

Good Luck
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smprossAuthor Commented:
BTW,
Hijack this was also clean. I think that the mshtml is a legitimate dll.

Scott
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smprossAuthor Commented:
One more thing... I did not mean mshtml.exe  I meant that it should be mshtml.dll.

Scott
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Mohammed HamadaSenior IT ConsultantCommented:
Can you give it a shot?
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Mohammed HamadaSenior IT ConsultantCommented:
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Pete LongTechnical ConsultantCommented:
Please download and run this http://windowsxp.mvps.org/utils/IEFix.zip
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Mohammed HamadaSenior IT ConsultantCommented:
Also Maybe this caused due to some third party program is causing the problem.

* Here is the workaround i found that worked for me. Go to Control Panel, Internet options. Next, go to Advance Tab.
Uncheck "Enable third party browser extension"
Click OK *

You might have to restart computer. If you have multiple profiles setup on your computer, you will have to do this for each profile.

Good Luck
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smprossAuthor Commented:
Actually, I think I have resolved the problem. I uninstalled and reinstalled the lst 3 ms patches which coincided with when the problem began.  This seems to have solved the error message from ocurring.  Thanks.
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Windows XP

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