IE has encountered a problem

[Linda]

Microsoft Internet Explorer has encountered a problem and
needs to close. We are sorry for the inconvenience. If
you were in the middle of something, the information you
were working on might be lost.
Restart Microsoft Internet Explorer
Please tell Microsoft about this problem. We have created
an error report that you can send to help us improve
Microsoft Internet Explorer. We will treat this problem
as confidential and anonymous. To see what data this
error report contains click here. Send Error Report or
Don't Send

IExpore
This program has performed an illegal operation and will
be shut down. If the problem persists contact the program
vendor.

Rundll32
This program has performed an illegal operation and will
be shut down. If the problem persists contact the program
vendor.

 

[H Leboeuf]

Check for virus.

Norton/Symantec AntiVirus
Symantec's home page. Search for possible virus with the Search Engine.
http://www.symantec.com
On Line check of your computer.
http://security.symantec.com/sscv6/default.asp

Or

McAfee, Network Security & Management
You can also check your computer one line.
http://us.mcafee.com/default.asp
McAfee, OnLine free Scan
http://us.mcafee.com/root/mfs/default.asp?cid=9914

It may also be some bad parasites.

Try this: Tools > Internet Options > Advanced > Browsing
Uncheck the Enable 3rd party browser extensions

If this clears your problem then find out who the culprit(s) is/are with
these tools.

Let AD-Aware Scan your system for advertising Spyware
http://www.lavasoftusa.com

If you use a HOSTS file, beware of this new issue.
Ad-Aware has decided to include a new detection when scanning the HOSTS
file. This now creates a "Bad hosts file entry" in the log file generated at
the end of a scan. The best thing to do is to place a check in each entry,
right-click and select: "Add selection to ignorelist". Otherwise if you let
AWW "fix" these items it will trash the HOSTS file! Even if you have it
"locked" by [example] SpywareBlaster or Winpatrol. It does not return the
attributes and renames the HOSTS file incorrectly to hosts.

and:

SpyBot-S&D
http://security.kolla.de/

p.s Reset the 3rd party browser setting.

More: This may be caused by a third-party program (adware, spyware,
parasite).
Get AdAware and SpyBot and run them both. Keep them up to date.
Dealing with Unwanted Spyware, Parasites, Toolbars and Search Engines
http://mvps.org/winhelp2002/unwanted.htm

Additional link:
http://aumha.org/a/quickfix.htm

You may need this removal tool.
More: Complete list by variant with up-to-date information.
http://www.spywareinfo.com/~merijn/cwschronicles.html
More: Removal tool: http://www.spywareinfo.com/~merijn/files/CWShredder.exe

CWShredder - Tutorial
http://www.bleepingcomputer.com/forums/index.php?showtutorial=47

IMPORTANT:
Before trying to remove spyware, download a copy of LSPFIX from
the URL below - some malware may kill your internet connection when it is
removed, this program will enable you to regain your connection.
http://www.cexx.org/lspfix.htm
http://www.spychecker.com/program/winsockxpfix.html (if your OS is Win2k or
XP)


Important: "So how did I get infected in the first place?"
http://forums.net-integration.net/index.php?showtopic=3051