IIS 4.0 with Multiple Certificates May Return Error

• Microsoft Windows NT Server version 4.0
• Microsoft Internet Information Server version 4.0
• Microsoft Windows NT Server version 4.0, Terminal Server Edition

SYMPTOMS

When you are using a 40-bit browser and try to connect to a 128- bit Internet Information Server (IIS) 4.0 computer using a secured connection, you may receive the following error instead of the 403.5 Forbidden SSL 128 required error message:

The server has received bad data from client

CAUSE

This problem occurs only if there are multiple certificates installed on the server. Schannel.dll does not handle multiple certificates correctly.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, please see the following article in the Microsoft Knowledge Base:

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Keywords : NT4SP4Fix kbfix4.00.sp4
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug