How to Remove and Reinstall Dial-Up Networking and TCP/IP Files

ID: Q181599

The information in this article applies to:
  • Microsoft Windows 95
  • Microsoft Windows 98

SUMMARY

This article describes how to remove and reinstall Dial-Up Networking and Transport Control Protocol/Internet Protocol (TCP/IP). These steps may be necessary under the following conditions:

  • You are unable to connect to a remote computer, remote network, or the Internet using TCP/IP bound to a dial-up adapter.


  • You have verified the accuracy of your TCP/IP settings.


  • You have verified your modem is functioning correctly.



MORE INFORMATION

To remove and reinstall Dial-Up Networking and TCP/IP, use the following steps:

Note that you should have your original Windows CD-ROM or disks available before beginning these steps.

  1. Record the configuration information for each connection in the Dial-Up Networking folder. To do so, use the following steps:
    1. Double-click My Computer, and then double-click Dial-Up Networking.


    2. Right-click a connection, click Properties, and then record all of the settings including the TCP/IP information. Repeat this process with another connection until you have recorded all of your connection's configuration information.




  2. If the Dial-Up Networking 1.2 or 1.3 Update is installed, uninstall it. If it is not installed, continue to the next step. To uninstall the Dial-Up Networking 1.2 or 1.3 Update, use the following steps:
    1. Click Start, point to Settings, click Control Panel, and then double-click Add/Remove Programs.


    2. On the Install/Uninstall tab, click Dial-Up Networking Upgrade 1.2 (or 1.3), and then click Add/Remove.


    3. When you are prompted to remove the update, click Yes, and then click OK.




  3. Delete all of your connections from the Dial-Up Networking folder. To do so, right-click a connection, and then click Delete. Repeat this process with another connection until you have deleted all of your connections, and then close the Dial-Up Networking folder.


  4. In Network properties, record each component and its configuration information:
    1. Click Start, point to Settings, click Control Panel, and then double-click Network.


    2. Click a component on the Configuration tab, click Properties, and then record all of the component's settings. Repeat this process with another component until you have recorded all of your component's configuration information.


    NOTE: Make sure that you have the required disks to reinstall any third-party items before you remove them in Network properties.


  5. Remove all of the network components from Network properties. To do so, click a component on the Configuration tab, and then click Remove. Repeat this process until you have deleted all of the network components from Network properties, click OK, and then click Yes when you are prompted to restart your computer.


  6. Uninstall Dial-Up Networking. To do so, follow these steps:
    1. Click Start, point to Settings, click Control Panel, and then double-click Add/Remove Programs.


    2. Click the Windows Setup tab, click Communications (the word Communications, not the checkbox), click Details, and then click the Dial-Up Networking check box to clear it.


    3. Click OK, click Apply, click OK, and then click Yes when you are prompted to restart your computer.




  7. Retart your computer to a command prompt. To do so, click Start, click Shut Down, click Restart, and then click OK. Press F8 for Windows 95 (or CTRL key for Windows 98), choose Command Prompt Only, and then press ENTER.


  8. At the command prompt, type the following commands, pressing ENTER after each command:
    cd\windows
    ren winsock.dll winsock.old
    cd\windows\system
    ren rnaapp.exe rnaapp.eex
    ren splitter.vxd splitter.dxv
    ren vgateway.vxd vgateway.dxv
    ren pppmac.vxd pppmac.dxv
    ren wsock.vxd wsock.dxv
    ren spap.vxd spap.dxv
    ren rnasetup.dll rnasetup.lld
    ren rnathunk.dll rnathunk.lld
    ren rasapi16.dll rasapi16.lld
    ren rasapi32.dll rasapi32.lld
    ren smmscrpt.dll smmscrpt.lld
    ren smmsetup.dll smmsetup.lld
    ren rnaserv.dll rnaserv.lld
    ren wsock32.dll wsock32.lld
    ren rnaui.dll rnaui.lld
    ren rnanp.dll rnanp.lld
    ren rnaph.dll rnaph.lld
    ren vdhcp.386 vdhcp.683
    ren vnbt.386 vnbt.683
    ren vtcp.386 vtcp.683
    ren vtdi.386 vtdi.683
    ren vudp.386 vudp.683
    ren vip.386 vip.683
    cd\
    cd progra~1\access~1
    ren slipmenu.scp slipmenu.old
    ren slip.scp slip.old
    cd\
    cd windows\inf
    ren net.inf net.fni
    ren nettrans.inf nettrans.fni
    ren netppp.inf netppp.fni
    ren rna.inf rna.fni
    ren drvdata.bin drvdata.old
    ren drvidx.bin drvidx.old
    NOTE: Some of these files may not be present.


  9. Restart your computer, and then extract the files in the following table from your original Windows disks or CD-ROM to the following folders.


    10. File Folder
    Rasapi32.dll Windows\System
    Wsock32.dll Windows\System
    Rnasetup.dll Windows\System
    Rna.inf Windows\Inf
    Winsock.dll Windows
    For information about how to extract a file, see the following article in the Microsoft Knowledge Base:
    Q129605 How to Extract Original Compressed Windows Files
    For information about which cabinet files contain the files you want to extract, please see the following articles in the Microsoft Knowledge Base:
    Q135540 Windows 95 CD-ROM Directory Listing (1 of 5)
    Q135537 Windows 95 CD-ROM Directory Listing (2 of 5)
    Q135538 Windows 95 CD-ROM Directory Listing (3 of 5)
    Q135539 Windows 95 CD-ROM Directory Listing (4 of 5)
    Q135541 Windows 95 CD-ROM Directory Listing (5 of 5)
    Q188428 Windows 98 CD-ROM Directory Listing (1 of 14)
    Q188429 Windows 98 CD-ROM Directory Listing (2 of 14)
    Q188430 Windows 98 CD-ROM Directory Listing (3 of 14)
    Q188431 Windows 98 CD-ROM Directory Listing (4 of 14)
    Q188432 Windows 98 CD-ROM Directory Listing (5 of 14)
    Q188433 Windows 98 CD-ROM Directory Listing (6 of 14)
    Q188434 Windows 98 CD-ROM Directory Listing (7 of 14)
    Q188435 Windows 98 CD-ROM Directory Listing (8 of 14)
    Q188436 Windows 98 CD-ROM Directory Listing (9 of 14)
    Q188437 Windows 98 CD-ROM Directory Listing (10 of 14)
    Q188438 Windows 98 CD-ROM Directory Listing (11 of 14)
    Q188439 Windows 98 CD-ROM Directory Listing (12 of 14)
    Q188440 Windows 98 CD-ROM Directory Listing (13 of 14)
    Q189503 Windows 98 CD-ROM Directory Listing (14 of 14)
  10. Reinstall Dial-Up Networking. To do so, use the following steps:

    1. Click Start, point to Settings, click Control Panel, and then double-click Add/Remove Programs.


    2. On the Windows Setup tab, click Communications (the word Communications, not the check box), click Details, and then click to select the Dial-Up Networking check box.


    3. Click OK, click Apply, click OK, and then click Yes when you are prompted to restart your computer.

      NOTE: You may receive version conflict error messages during this process. If this happens, click Yes when you are prompted to keep a newer version of the Secur32.dll and Rpc*.dll files. Click No for all other files.




  11. Reinstall and configure the network components (listed in step 5). To do so, use the following steps:
    1. If you have a network adapter installed, install the software for the adapter according to the manufacturer's instructions.


    2. Click Start, point to Settings, click Control Panel, and then double-click Network.


    3. On the Configuration tab, click Add, click Adapter, click Add, click Microsoft in the Manufacturers box, click Dial-Up Adapter, and then click OK.


    4. Click Protocol, click Add, click Microsoft in the Manufacturers box, click TCP/IP, and then click OK.

      NOTE: You may receive version conflict error messages during this process. If this happens, click No when you are prompted to keep a newer version of each file.


    5. If needed, add a network client. To do so, click Client, click Add, click the appropriate manufacturer, click the client you want to install, and then click OK.

      NOTE: You may need to reconfigure the network components that have been reinstalled. To do so, click the network component, click Properties, add any appropriate settings, and then click OK. If needed, refer to the configuration information you recorded in step 4.




  12. Restart your computer.


  13. Re-create your Dial-Up Networking connections. To do so, use the following steps:
    1. Double-click My Computer, double-click Dial-Up Networking, and then follow the instructions on the screen in the Make New Connection Wizard.


    2. Right-click the connection that you created, click Properties, and then verify that the settings are the same as the configuration information you recorded in step 2. Repeat steps a and b until you have re-created all of your Dial-Up Networking connections.




NOTE: If after you perform the steps listed in this article you receive the following error message:
Error 745: An essential file is missing. Re-install Dial-Up Networking.
Refer to the following article in the Microsoft Knowledge Base to resolve the issue:
Q174579 Error Message: Error 745: An Essential File Is Missing

Additional query words: manually uninstall manual dun

Keywords : kbnetwork dun win95 win98
Version : WINDOWS:95
Platform : WINDOWS
Issue type : kbhowto


Last Reviewed: January 24, 2000
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