Microsoft KB Archive/823256

= MSBBN: &quot;Iphlpapi.dll Cannot Start&quot; Error Message When You Try to Install Broadband =

Article ID: 823256

Article Last Modified on 2/5/2007

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APPLIES TO


 * Microsoft Broadband Networking 10/100 Ethernet Notebook Adapter
 * Microsoft Broadband Networking 10/100 Ethernet PCI Adapter
 * Microsoft Broadband Networking 10/100 Ethernet USB Adapter
 * Microsoft Broadband Networking Wireless Notebook Adapter MN-720
 * Microsoft Broadband Networking Wireless USB 2.0 Adapter MN-710

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SYMPTOMS
When you try to install your Microsoft Broadband Networking hardware, you may receive the following error message:

Iphlpapi.dll file cannot start.



CAUSE
This issue may occur if both of the following conditions are true:
 * You are using a Microsoft Windows 98- based or Microsoft Windows Millennium Edition (Me)-based computer.
 * The system file Iphlpapi.dll is missing or damaged.



RESOLUTION
To resolve this issue, follow these steps.

Completely Remove Your Adapter

 * 1) Physically remove the Microsoft Broadband Networking adapter from your computer.
 * 2) Re-start your computer in Safe Mode.

To do this, restart your computer, press the F8 key repeatedly while the system is restarting, and then click Safe Mode on the Boot menu.
 * 1) Right-click My Computer, and then click Properties.
 * 2) Click Device Manager, and then expand Network Adapters.
 * 3) Right-click any instances of the Microsoft Broadband Networking adapter, and then click Remove.
 * 4) Restart your computer as you typically do.

Remove the Broadband Networking Program, Microsoft Internet Explorer, and Internet Connection Sharing

 * 1) Click Start, point to Settings, and then click Control Panel.
 * 2) Double-click Add/Remove Programs, click Microsoft Broadband Networking, click Add/Remove, and then click Remove Microsoft Broadband Networking.
 * 3) Click Finish.
 * 4) Click Start, point to Settings, and then click Control Panel.
 * 5) Double-click Add/Remove Programs, click Microsoft Internet Explorer, click Add/Remove, and then click Restore the Previous Windows Configuration
 * 6) Click OK
 * 7) Click Start, point toSettings, and then click Control Panel.
 * 8) Double-click Add/Remove Programs, click Microsoft Broadband Networking, click Add/Remove, click the Windows Setup tab, click Internet Tools, and then click Details.
 * 9) Make sure that the Internet Connection Sharing check box is not selected.
 * 10) Click OK, and then click OK again.

Rename the Iphlpapi.dll File

 * 1) Restart your computer in Safe Mode again.
 * 2) Click Start, click Run, type command, and then click OK.
 * 3) At the command prompt, type arp -d.
 * 4) At the command prompt, type ren c:\windows\system\iphlpapi.dll c:\windows\system\iphlpapi.OLD, and then press ENTER.
 * 5) Type exit, and then press ENTER.

Restore the Iphlpapi.dll File

 * 1) Restart your computer as you typically do.
 * 2) Click Start, click Run, and then type sfc.
 * 3) Click Extract one file from installation disk.
 * 4) Type c:\windows\system\iphlpapi.dll, and then click Start.

On the next screen under Restore from, click Browse, and then locate the Windows cab files on your Windows Setup CD.
 * 1) Click OK.

Reinstall Internet Explorer

 * 1) Insert your Microsoft Broadband Networking CD in the CD-ROM drive.
 * 2) Quit the Microsoft Broadband Networking Setup Wizard if it starts automatically.
 * 3) Double-click My computer, right-click your CD-Rom drive, and then click Explore.
 * 4) Open the IE6 folder, open the eng folder, open the CD folder, and then double-click the Ie6setup.exe file to reinstall Internet Explorer.

Reinstall Your Broadband Networking Hardware and Software
Follow the instructions that are provided with your Microsoft Broadband Networking hardware to install your hardware and software.

Keywords: kbhardware kbprb KB823256

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