RFC 1323 Options Can Not Be Enabled in Windows 95/98

ID: Q239705

The information in this article applies to:

Microsoft Windows 98
Microsoft Windows 98 Second Edition
Microsoft Windows 95
Microsoft Windows 95 OEM Service Release versions 1, 2, 2.1, 2.5

SYMPTOMS

When you edit the Tcp1323Opts registry value for the TCP/IP protocol in your Windows 98/95-based computer, it does not enable RFC 1323 options as documented in the following article in the Microsoft Knowledge Base:

Q158474 Windows TCP/IP Registry Entries

Also, changing the Tcp1323Opts registry value has no effect on the behavior of the TCP/IP protocol on Windows 95 and Windows 98.

CAUSE

There is a problem in the TCP protocol driver (Vtcp.386) when reading and implementing this registry value.

RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

The English version of this fix should have the following file attributes or later:


   Date       Time     Version     Size     File name   Platform
   --------------------------------------------------------------------
   08/02/99   2:29pm   4.10.2223   60,281   Vtcp.386    Win98 & Win98SE

NOTE: If this product was already installed on your computer when you purchased it from the Original Equipment Manufacturer (OEM) and you need this fix, please call the Pay Per Incident number listed on the above Web site. If you contact Microsoft to obtain this fix, and if it is determined that you only require the fix you requested, no fee will be charged. However, if you request additional technical support, and if your no-charge technical support period has expired, or if you are not eligible for standard no-charge technical support, you may be charged a non-refundable fee.

For more information about eligibility for no-charge technical support, see the following article in the Microsoft Knowledge Base:

Q154871 Determining If You Are Eligible for No-Charge Technical Support

STATUS

Microsoft has confirmed this to be a problem in Windows 95 and Windows 98.

MORE INFORMATION

With this fix installed, Windows 98 supports RFC 1323 options as documented in the following article in the Microsoft Knowledge Base:

Q158474 Windows TCP/IP Registry Entries

Enabling these RFC 1323 options may improve network performance in certain situations, such as communicating over a satellite link.

For additional information about how other Microsoft Windows versions behave with respect to RFC 1323, please click the article number(s) below to view the article(s) in the Microsoft Knowledge Base:

Q199947 TCP/IP: Windows NT 4.0 Does Not Support TCP Scale Option

Additional query words:

Keywords : kbtool win95 win98 win98se
Version : WINDOWS:95
Platform : WINDOWS
Issue type : kbprb