Remove Dial-Up Networking and then reinstall it. (The following steps are for Windows 95, Windows 98 & Windows ME only.  Also you may be asked for your Windows CD, make sure you have this handy BEFORE you begin this procedure.)

To remove Dial-Up Networking

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

2. On the Windows Setup tab, click Communications, and then click Details.

3. In the Communications dialog box, click to clear the Dial-Up Networking check box, click OK, and when prompted, restart your computer.

To reinstall Dial-Up Networking

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

2. On the Windows Setup tab, click Communications, and then click Details.

3. In the Communications dialog box, click to select the Dial-Up Networking check box, click OK, and when prompted, restart your computer.