When you attempt to make a Virtual Private Networking (VPN) connection by using Point-to-Point Tunneling Protocol (PPTP), you may receive the following error message: When you click OK, you can connect to the Internet, but you are cannot establish a PPTP connection.

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This behavior can occur if "Dial-Up Adapter #2 (VPN Support)" is not installed in Network properties.

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WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To resolve this behavior, reinstall VPN. To do this, use the steps in one of the following sections, depending on your operating system.

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Windows 98

Remove and then reinstall VPN by using the Add/Remove Programs tool in Control Panel:

1.	Click Start, point to Settings, and then click Control Panel.
2.	Double-click Add/Remove Programs.
3.	Click the Windows Setup tab.
4.	Click Communications, and then click Details.
5.	Click to clear the Virtual Private Networking check box, click OK, and then click Apply.
6.	Repeat steps 3 through 5, but click to select the Virtual Private Networking check box.
7.	Click OK.

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Windows 95

Reinstall the Dial-Up Networking 1.3 upgrade. For additional information about how toobtain and install the Dial-Up Networking 1.3 upgrade, click the article number below to view the article in the Microsoft Knowledge Base: If the steps in the "Dial-Up Networking 1.3 Upgrade Available" Knowledge Base article do not resolve the behavior, you can use the steps in this article to help resolve the behavior, especially if the registry keys are damaged.

When you install the VPN adapters, the Winsock registry keys may become damaged, either by the installation or by a third-party VPN adapter installation. This damaged registry key is not repaired when you remove and reinstalle the VPN adapters or their software components; therefore, you must remove the associated registry keys for the settings.

1.	Remove Dial-Up Networking and VPN (you need your Windows CD-ROM to follow these steps): a. Click Start, point to Settings, click Control Panel, and then double-click Add/Remove Programs. b. On the Windows Setup tab, click Communications, and then click Details. c. Click to clear the Dial-Up Networking check box, and then click Yes if you receive a message that Dial-Up Networking is required by other components. d. Click to clear the Virtual Private Networking check box. e. Click OK until you are prompted to restart your computer, and then click No.
2.	Delete the WinSock2 registry keys that are located in the following registry keys: HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Winsock HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Winsock2 HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/VxD/AFVXD HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/VxD/DHCP HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/VxD/DhcpOptions HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/VxD/MSTCP HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/VxD/Winsock HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/VxD/Winsock2 To delete the WinSock2 registry keys, right-click the registry keys, one at a time, and then click Delete.
3.	Restart your computer manually.
4.	After Windows restarts, install Dial-Up Networking and VPN (you need your Windows CD-ROM to follow these steps): a. Click Start, point to Settings, click Control Panel, and then double-click Add/Remove Programs. b. On the Windows Setup tab, click Communications, and then click Details. c. Click to select both the Dial-Up Networking and Virtual Private Networking check boxs. d. Click OK until you are prompted to restart your computer (if you are not prompted to restart your computer, restart it manually).

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If you remove and then reinstall the VPN adapter in Network properties, "Dial-Up Adapter #2 (VPN Support)" is not reinstalled.

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