This Microsoft(c) Knowledge Base article is re-printed here, in it's
entirety, for the purposes of helping our customers with problems surrounding
IE40. It is not the easiest chore to find this, so we thought it best to
provide you a local copy to review:
When to Remove Internet Explorer
Remove Internet Explorer 4.0 before you perform any of the following actions:
Installing an earlier version of Internet Explorer (3.0, 3.01, or 3.02).
Restoring a registry (System.dat or User.dat) that was created before you
installed Internet Explorer 4.0 (this applies to Microsoft Windows 95 only).
Using a Windows NT Emergency Recovery Disk (ERD) you created before you
installed Internet Explorer 4.0 (this applies to Windows NT only).
Upgrading to a later release of Internet Explorer 4.0.
Reinstalling your operating system (Windows 95 or Windows NT).
Installing or uninstalling operating system upgrades (for example, Windows 95
Service Pack 1).
Uninstalling Internet Explorer 4.0 May Not Be Supported
There are some configurations in which uninstalling Internet Explorer 4.0
does not work. Uninstalling Internet Explorer 4.0 is not supported in the
following situations:
Internet Explorer 4.0 is installed in multiple operating system
installations (Windows 95, Windows 95 OEM Service Release 2, or Windows NT
4.0) on the same logical hard disk. If you need to run Internet Explorer
4.0 in multiple operating systems, you must install each operating system
on a separate logical drive.
You have removed the Internet Explorer 4.0 backup files. If you removed
the backup files, you are unable to uninstall Internet Explorer 4.0
without reinstalling Windows into a different folder. For additional
information, please see the following article in the Microsoft Knowledge
Base:
ARTICLE-ID: Q172919
TITLE : Uninstall Internet Explorer 4.0 Option Is Missing
MORE INFORMATION
Before you uninstall Internet Explorer, quit all running programs. For
information about problems that can occur if you do not quit all running
programs before uninstalling Internet Explorer, please see the following
article in the Microsoft Knowledge Base:
ARTICLE-ID: Q165646
TITLE : Program Settings Lost After Internet Explorer Setup or
Uninstall
To uninstall Internet Explorer 4.0 in Windows 95 and Windows NT 4.0,
follow these steps:
NOTE: You must have administrative privileges to install and uninstall
Internet Explorer 4.0 on Windows NT. This includes having administrative
privileges the first time you start your computer after you install or
uninstall Internet Explorer 4.0.
In Control Panel, double-click Add/Remove Programs, and then click the
Install/Uninstall tab.
In the list of installed programs, click Microsoft Internet Explorer 4.0,
and then click Add/Remove.
In the Internet Explorer 4.0 Active Setup dialog box, click "Uninstall
Internet Explorer 4.0 and all its components," and then click Advanced to
specify any additional components you want to remove.
Click OK.
When Setup starts in Maintenance mode, click Remove All.
If there are any files in the Recycle Bin, you receive the following message:
Internet Explorer 4.0 has modified the format of the
Recycle Bin.
If you want to keep any of the items currently in the
Recycle Bin, open the Recycle Bin and move the items
to a different location.
To permanently delete all items from the Recycle Bin
and continue, click OK.
Click OK after checking that there are no files in the Recycle Bin that
you want to restore.
Known Issues with Uninstalling
Office 97 files may be removed after you uninstall Internet Explorer 4.0.
This problem only occurs if you install Internet Explorer 4.0 before you
install Microsoft Office 97, and then uninstall Internet Explorer 4.0.
For additional information, please see the following article in the
Microsoft Knowledge Base:
ARTICLE-ID: Q174431
TITLE : OFF97: Problems Occur After Removing MS Internet
Explorer 4.0
When you uninstall Internet Explorer 4.0, some user settings are returned
to operating system defaults. For additional information about this
problem, see the following article in the Microsoft Knowledge Base:
ARTICLE-ID: Q173921
TITLE : Uninstalling Internet Explorer Restores Default Settings
You cannot uninstall Microsoft Plus! for Windows 95 after uninstalling
Internet Explorer 4.0. Using the Remove All option in Microsoft Plus!
Maintenance-mode Setup results in the following error message:
Custom Action Error" The system cannot find the specified file.
For additional information about uninstalling Microsoft Plus!, see the
following article in the Microsoft Knowledge Base:
ARTICLE-ID: Q165623
TITLE : Cannot Remove Microsoft Plus! After Installing Internet
Explorer
When you uninstall Internet Explorer 4.0, any certificates obtained after
you installed Internet Explorer 4.0 are removed. Certificates obtained
prior to installing Internet Explorer 4.0 are not removed. For additional
information, please see the following article in the Microsoft Knowledge
Base:
ARTICLE-ID: Q174920
TITLE : Uninstalling Internet Explorer 4.0 Removes Certificates
Some registry entries and files remain on your computer.
All components may not be uninstalled. You can uninstall individual
components by clicking Add/Remove Programs in Control Panel, clicking the
program in the list of installed programs, and then clicking Add/Remove.
If you install Internet Explorer 4.0, install a program, and then
uninstall Internet Explorer 4.0, some programs may not work properly.
After uninstalling Internet Explorer 4.0, if a program does not work
properly, reinstall the program.
If you uninstall Internet Explorer 4.0, Internet icons may remain in other
programs such as Microsoft Word and Microsoft Excel. If you click these
icons, nothing happens because no browser is installed.
General Troubleshooting
If Maintenance-mode Setup does not work or you cannot run Setup, try one
of the following methods:
In Windows 95, try restarting your computer in Safe mode, and then use the
Add/Remove Programs tool in Control Panel to uninstall Internet Explorer
4.0. To restart the computer in Safe mode, click Start, click Shut Down,
click Restart The Computer, and then click Yes. When you see the "Starting
Windows 95" message, press the F8 key, and then choose Safe Mode from the
Startup menu.
Reinstall Internet Explorer 4.0, and then uninstall it.
In Windows 95, restore a registry created before installing Internet
Explorer 4.0, and then use the Ieremove tool to restore your shell files.
For more information, see the following article in the Microsoft Knowledge
Base:
ARTICLE-ID: Q166313
TITLE : Removing Internet Explorer 4.0 for Windows 95 Using
Ieremove.exe
In Windows NT, use an ERD created before installing Internet Explorer 4.0
to replace necessary system files, and then run the Ieremove tool to
restore previous shell components. For more information, see the following
article in the Microsoft Knowledge Base:
ARTICLE-ID: Q166314
TITLE : Removing Internet Explorer for Windows NT 4.0 Using
Ieremove.exe
Reinstall your operating system and previous browser in a "clean" folder,
or restore from a complete system backup made before installing Internet
Explorer 4.0.
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