Article ID: 166832
When you restart your computer after installing the Dial-Up Adapter, you may receive the following error messages:
The following files are listed as missing:
Cannot find a device file that may be needed to run Windows or a Windows application.
The Windows registry or SYSTEM.INI file refers to this device, but the device file no longer exists ...
If you still want to use the application associated with this device file, try reinstalling that application to replace the missing file.
Vnetsup.vxdTwo additional dialog boxes may appear informing you that the following two files cannot be found:
Nwnp32.dllAfter you acknowledge these error messages, Windows starts normally but without Dial-Up Networking functionality.
This problem can occur if you install Dial-Up Networking, Dial-Up Adapter, or Virtual Private Networking and then cancel Setup while the Copying Files dialog box is displayed. The Dial-Up Networking files are not copied to the hard disk but the file names are added to the registry. When the computer is restarted, the files are requested and cannot be found.
NOTE: If you have previously set up Dial-Up Networking and have added items such as phone numbers, TCP/IP settings, and other protocols, record the information before you remove the Dial-Up adapter. Do the same for Network Adapter properties information if a network adapter is listed in Network properties. To resolve this problem, remove and then reinstall Dial-Up Networking. To do so, follow these steps:
NOTE: Check with your system administrator or Internet service provider to determine the required settings for Dial-Up Networking and TCP/IP.
For additional information about configuring Dial-Up Networking to workwith an Internet service provider, click the article number below to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/133219/EN-US/ )Connecting to the Internet Using a Service Provider
If you cancel the Dial-Up Adapter installation while the Copying Files dialog box is displayed, the installation proceeds and returns the following message:
Because the files were not copied to the hard disk, you receive the error messages listed at the beginning of this article. Completing the installation of the files as outlined above resolves the issue.
You must now restart your computer before the new settings will take effect. Do you want to restart you computer now?
For additional information about similar startup problems, click the article number below to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/140010/EN-US/ )Microsoft Plus! Setup Inadvertently Installs NetWare Client
(https://support.microsoft.com/kb/137454/EN-US/ )Err Msg: Cannot Find a Device File...Vnetsup.vxd
(https://support.microsoft.com/kb/132008/EN-US/ )Err Msg: Cannot Find a Device File That May Be Needed...
Article ID: 166832 - Last Review: June 22, 2014 - Revision: 3.0