Problems Installing Network Protocol That Uses TDI Interface

• Microsoft Windows 95

SYMPTOMS

Windows 95 may stop responding (hang) with different results on different Computers when you try to install a network protocol that uses the TDI interface.

This problem occurs only if the Microsoft TCP/IP protocol is already installed when you try to add the other protocol, or when you try to add the Microsoft TCP/IP protocol after installing another protocol that uses the TDI interface.

CAUSE

The TDI interface provider (Vtdi.386) included with Windows 95 supports only one protocol using that interface. The TCP/IP protocol included with Windows 95 uses the TDI interface, causing a conflict if you install an additional protocol that uses the TDI interface.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Windows 95 and OEM Service Release 2 (OSR2). An update to address this problem is now available, but is not fully regression tested and should be applied only to computers experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft does not recommend implementing this update at this time. Contact Microsoft Technical Support for additional information about the availability of this update.

MORE INFORMATION

This problem was reported with the ICL Workgroup OSI protocol by International Computers Limited.

For additional information about the function of the TDI layer, please see the following articles in the Microsoft Knowledge Base:

   ARTICLE-ID: Q101871
   TITLE     : Information on the TDI Layer

   ARTICLE-ID: Q128233
   TITLE     : Comparison of Windows NT Network Protocols