Error message when you view a WAN Miniport (SSTP) network adapter or a WAN Miniport (NDISWANBH) network adapter in Device Manager in Windows Vista: “Error code 39”

You install Windows Vista Service Pack 1 (SP1) on a computer that is running the release version of Windows Vista. When you uninstall Windows Vista SP1, an exclamation point (!) on a yellow field appears next to a WAN Miniport (SSTP) network adapter or next to a WAN Miniport (NDISWANBH) network adapter in Device Manager. When you view the properties of the device, you receive the following error message:

Error code 39.

 

CAUSE

This problem occurs because SSTP network adapters and NDISWANBH network adapters are not supported in the release version of Windows Vista. The devices should not be displayed in Device Manager.

 

WORKAROUND

To work around this problem, you can safely ignore this message in the release version of Windows Vista. The error message that is mentioned in the “Symptoms” section does not affect the uninstallation and reinstallation of Windows Vista SP1. SSTP devices and NDISWANBH devices continue to function correctly when you reinstall Windows Vista SP1.

 

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the “Applies to” section.

 


APPLIES TO
Windows Vista Enterprise 64-bit Edition
Windows Vista Home Basic 64-bit Edition
Windows Vista Home Premium 64-bit Edition
Windows Vista Ultimate 64-bit Edition
Windows Vista Business
Windows Vista Business 64-bit Edition
Windows Vista Enterprise
Windows Vista Home Basic
Windows Vista Home Premium
Windows Vista Starter
Windows Vista Ultimate

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Microsoft Knowledge Base Article

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