Microsoft KB Archive/166322

Uninstalling Internet Explorer 4.0 Platform Preview 1.0

Q166322

The information in this article applies to:

Microsoft Internet Explorer for Windows 95
Microsoft Internet Explorer for Windows NT 4.0

SUMMARY

This article describes how to uninstall (or remove) Internet Explorer 4.0 Platform Preview 1.0 (Version 4.71.544) under Microsoft Windows 95 and Windows NT 4.0.

For information on uninstalling other versions of Internet Explorer 4.x, please see the following articles in the Microsoft Knowledge Base:

Q170757 Uninstalling Internet Explorer 4.0 Platform Preview 2.0

Q174265 How to Uninstall Internet Explorer 4.0

When to Remove Internet Explorer

Uninstall Internet Explorer 4.0 Platform Preview 1.0 before you perform any of the following actions:

Upgrade to a later version of Internet Explorer
Install an earlier version of Internet Explorer (3.0, 3.01, or 3.02).
Restore a registry that was created prior to installing Internet Explorer 4.0. For example, replacing a current registry with System.1st. This situation applies to Windows 95 only.
Use a Windows NT Emergency Recovery Disk (ERD) created prior to installing Internet Explorer 4.0. This applies to Windows NT only.
Reinstall your operating system.

Uninstalling Internet Explorer 4.0 May Not Be Supported

There are some configurations under which uninstalling Internet Explorer 4.0 does not work. Uninstalling Internet Explorer 4.0 is not supported in the following situations:

The current version of Internet Explorer 4.0 was upgraded from an earlier version of Internet Explorer 4.0.
Internet Explorer 4.0 is installed under multiple operating system installations (Windows 95, OSR2, or Windows NT 4.0) on the same logical disk drive. If you need to run Internet Explorer 4.0 under multiple operating systems, you must install each operating system to a separate logical disk drive letter.

MORE INFORMATION

To uninstall Internet Explorer 4.0 under Windows 95 and Windows NT 4.0, follow these steps:

In Control Panel, double-click Add/Remove Programs, and then click the Install/Uninstall tab.
In the list of installed programs, click each of the Internet Explorer 4.0 add-on programs, and then Click Add/Remove to uninstall the program.

NOTE: The following Internet Explorer 4.0 add-on programs may be installed:
- Microsoft FrontPad 97
- Microsoft Multimedia Controls
- Microsoft Music Controls
- Microsoft NetMeeting 2.0 Beta 4
- Microsoft NetShow On Demand Player
- Microsoft Wallet
- Microsoft Windows Script Host
- Task Scheduler 1.0 (remove only)
- Web Publishing Wizard
In the list of installed programs, click Microsoft Internet Explorer 4.0.

NOTE: The following options may also appear in the list of installed programs. Make sure you click Microsoft Internet Explorer 4.0 and not one of these items:
- Microsoft Internet Explorer 4.0 Backup Files
- Microsoft Internet Explorer 4.0 - Shell Integration Mode
Click Add/Remove.
When Setup starts in maintenance mode, click Remove All.

NOTE: You can also manually run Setup in maintenance mode by running Setup.exe from the Setup folder in your Internet Explorer 4.0 installation folder. However, Uninstall will not be hands-off or create an uninstall log file (Ie4unin.log) unless you use the following command line:
```
      "C:\Program Files\Internet Explorer\Setup\setup.exe" /gc
      C:\windows\IE4Unin.log
     
```

Removing Internet Explorer 4.0 Files and Restoring Internet Explorer 3.02

The following steps are optional instructions that describe how to remove extra files associated with Internet Explorer 4.0 after you remove it and restore a working installation of Internet Explorer version 3.02:

After Maintenance-mode Setup has finished removing Internet Explorer 4.0, use the Find command on the Start menu to find and delete the following files:

Inetcfg.dll
Icwdial.dll
Isign.dll
Icwphbk.dll

These files are associated with the Internet Connection Wizard and are not removed during uninstall.

Remove Internet Explorer 3.x using the Add/Remove Programs tool in Control Panel. To remove Internet Explorer 3.x, follow these steps:

Click Start, point to Settings, and then click Control Panel.
Double-click Add/Remove Programs.
On the Install/Uninstall tab, click Internet Explorer 3.0 or 3.02 in the list of installed programs, and then click Add/Remove.

Reinstall Internet Explorer 3.02.

Known Issues with Uninstall

You will be unable to uninstall Internet Explorer 4.0 if you have previously removed Microsoft Internet Explorer 4.0 Backup Files using the Add/Remove Programs tool. Removing the backup files also removes Microsoft Internet Explorer 4.0 from the list of programs that can be uninstalled. If you run Setup.exe from the Setup folder in your Internet Explorer 4.0 installation folder, you will receive the following error message:

Setup was unable to uninstall the Integrated Browser Mode feature. The required uninstall information is missing. Internet Explorer 4.0 cannot be uninstalled.

This message will be followed by the following message:

Microsoft Internet Explorer 4.0 Setup was not completed successfully.

NOTE: You should be able to reinstall Internet Explorer 4.0 in this situation (same or later build), but you will not be able to uninstall Internet Explorer 4.0.
When you uninstall Internet Explorer 4.0, some user settings are deleted, including:

Recycle Bin - Confirmation dialog box resets to "yes."

Windows Explorer - View Options resets to operating system installation defaults.

Task Bar - Auto Hide changes to "off."
Outlook Express shortcuts remain on the Start menu, both on the main menu and in the Internet Explorer Suite folder.

You are unable to uninstall Microsoft Plus! for Windows 95 after uninstalling Internet Explorer 4.0.

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:

Q165623 Cannot Remove Microsoft Plus! After Installing Internet Explorer

General Troubleshooting

If Maintenance-mode Setup does not work or you cannot run Setup, you may want to try one of the following methods:

In Windows 95, try restarting your computer in Safe mode and then using the Add/Remove Programs tool 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 OK. When you see the "Starting Windows 95" message, press the F8 key, and then choose the Safe Mode option from the Startup menu.
Try reinstalling Internet Explorer 4.0, then uninstalling it.
Reinstall your operating system and previous browser into a "clean" folder, or restore from a complete system backup made prior to installing Internet Explorer 4.0.

Explanation of Add/Remove Programs Tool Entries

In addition to Microsoft Internet Explorer 4.0, the Install/Uninstall tab in the Add/Remove Programs tool includes the following entries for Internet Explorer 4.0:

Microsoft Internet Explorer 4.0 Backup Files

If you attempt to remove (uninstall) this entry the following message is displayed:

WARNING: Removing this component will free approximately 10 MB of hard disk space however you will not be able to uninstall Internet Explorer 4.0 if this component is removed.
Microsoft Internet Explorer 4.0 - Shell Integration Mode

This entry is a user interface for enabling or disabling the Integrated Browser.

Additional query words: 4.00

Keywords : msiew95 msient
Issue type : kbhowto
Technology : kbIEsearch kbZNotKeyword2 kbIENT400Search kbIE95Search kbZNotKeyword3