My computer keeps poping up " Explorer has performed an iligal operation and will close" Does anyone know why?

Error Message: "This program has performed an illegal operation and will be shut down. If the problem persists, contact the program vendor." with Details such as: "IExplore caused an invalid page fault in module Mshtml.dll." or "IExplore has caused an error in Mshtml.dll. IExplore will now close. If you continue experiencing problems, try restarting your computer." (or something similar)

Translation: You may receive these types of error messages after installing IE. And by clicking the Details button in the error message window, you'll see the second part of the error message. During new program installations, many of the files copied to the system are DLL files. And, as we mentioned previously, DLL files that don't work with existing software or DLL files that have been deleted or become corrupt frequently cause illegal operation messages and then shut down the program.

Solution: This particular error message might be caused by a conflict with an earlier version of Gator software by Gator.com. Gator helps Internet users expedite the process of filling out forms online. To solve the problem, you can either uninstall Gator or upgrade to the latest version of the software. For more information, visit http://www.gator.com/help/1525.html.

Did you load a newer version Windows on this old Compaq? It's possible there's a conflict between that and the motherboard memory going on, if that's the case.

If not, it very well could be either the old version Windows on the old Compaq computer badly needs updating from the Windows.com website.

If updates don't help, then we're closing on a possibility your old compaq computer may have a troublesome virus lurking on the hard drive. You'll find (and you really have to look for it) a FREE version of AVG anti-virus that (if you can) download and it should be of some help. I'd also load up on some spyware programs like Crap Cleaner as well.

It's likely you'll have to find these programs on another computer and download/burn them on a CD. Try that and see if it works.

There may be different reasons for this problem. If you have installed a new one and that is not working, then probabily your hardware does not support the software.

The second and most probable reason is that your explorer hanged during some operation and you "end tasked" it. or restarted the computer. Due to this some explorer files may be damaged. That needs the reinstallation of the software or repair it from the disk you installed the explorer.

It has probably corrupted from its age and the software installed on the computer. Follow the Repair instructions for Internet Explorer here:

http://support.microsoft.com/kb/q194177/

Or for Windows XP:

http://support.microsoft.com/?kbid=318378

Otherwise it probably has to do with Quicktime, Flash, Shockwave or any toolbars that you may have installed. Try reinstallion those and seeing if the problem persists.

This is usually the fix even if Explorer is Windows Explorer and not Internet Explorer as both are connected.

You may be running an older version of windows while trying to run computer-heavy programs.

I would suggest updating to the latest version of windows

Windows XP Home edition SP2

And if you already are, there may be a virus on your computer and antivirus software, like the free Windows Defender, is necessary

if u have got a recovery cd of the os then try to recover the things from recovery cd before that take the backup of all the files on the cd which u want and do it otherwise try reinstalling the latest internet explorer which is available it will solve ur problem

it might be due to improper installation of ur internet explorer. just upgrade ur internet explorer once. if its the latest then uninstall the updates of ie and the reinstall those from internet

You need to go to Windows update. It will take care of the problem.

why wasting ur time with Internet explorer .

try some other browsers like Mozilla

see http://www.mozilla.org/products/mozilla1.x/

that is that websites' problem not your computer's to stop that from that websit just click that yellow line and select teparary allow pop up