Microsoft KB Archive/178972

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Description of Windows 95 OEM Service Release 2.5

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Q178972

The information in this article applies to:


 * Microsoft Windows 95 OEM Service Release, version 2.5

SUMMARY
This article describes Windows 95 OEM Service Release 2.5 (OSR2.5)

MORE INFORMATION
OSR2.5 is version 950C of Windows 95. An Original Equipment Manufacturer (OEM) Service Release is an updated version of a product for personal computer (PC) manufacturers to preinstall on new PCs.

OSR2.5 is Windows 95 OEM Service Release 2 with integrated Microsoft Internet Explorer 4.01 Setup, and updated online services clients. The purpose of OSR2.5 is to allow PC manufacturers to install an integrated Windows 95 product that contains the latest available individual updates.

NOTE: You cannot upgrade earlier versions of Windows 95 or Windows 3.1 with Windows 95 OSR2.5.

Internet Explorer version 4.01 and the individual updates that are widely applicable to a general audience are available for free download from Microsoft. The updated online services clients are available from the respective online service provider.

Microsoft reserves the right to revise and change these plans without notice.

Support Boundaries
Windows 95 OSR2.5 is a product preinstalled on OEM computers. The OEM is the primary support provider for this product and any warranty support for it will be handled by their support organizations and governed by the OEMs support policies. Microsoft will provide fee-based support. Any issues with this product concerning Y2K will be handled free of charge by Microsoft.

Any modifications made to OSR2.5 by the OEM will not be supported by Microsoft.

Microsoft Technical Support Desktop Systems does not support OEMs, or OEM Preinstallation Kit (OPK) issues. OEMs are supported at an OEM account level only.

Microsoft Premier Desktop Systems supports the full functionality and usability of OSR2.5 as shipped by Microsoft to the OEM. Any modifications made to Windows 95 OSR2.5 by the OEM will be supported by the OEM. Installation of OSR2.5 is supported by Microsoft OEM support at an OEM level. On a reasonable-effort basis, Premier Desktop Systems supports the installation of OSR2.5 as a troubleshooting step. Batch installations and network installation are not supported by OSR2.5 and are not supported by Premier Desktop Systems Technical Support.

Enhancements
This release contains updated components such as Internet Explorer, the online services, and some updates that have been released since OEM Service Release 2 (OSR2) was released.

This release contains all of the updated components of Windows 95 OEM Service Release 2.1 (OSR2.1), and the following additions:

Internet:


 * Internet Explorer 4.01 browser
 * Internet Explorer 4.01 shell
 * Microsoft Virtual Machine (VM) for Java
 * Microsoft Wallet
 * Microsoft NetShow
 * Microsoft FrontPage Express
 * Microsoft Web Publishing Wizard
 * Microsoft Chat
 * Microsoft Outlook Express
 * Internet Connection Wizard
 * Microsoft NetMeeting 2.1

Updated Online Services:


 * America Online
 * AT&T
 * CompuServe
 * The Microsoft Network
 * Prodigy
 * and several international clients

DirectX:


 * DirectX 5 OPK, which can be optionally preinstalled by the OEM.

Universal Serial Bus (USB) Supplement (also known as OSR2.1):


 * The USB Supplement can be optionally preinstalled by the OEM.

Updates:


 * One core file update for Intel Pentium II processors (CPUs)
 * International-specific updates

For more information about the core file update, please see the following article in the Microsoft Knowledge Base:

"Q179897 Memory Management Problems on Computers with Pentium Processors"

For additional information about Internet Explorer 4.01, please see the following article in the Microsoft Knowledge Base:

"Q177485 Microsoft Internet Explorer 4.01 Available" Additional query words: SBK OPK

Keywords : osr2 dtssb win95 kbOPK kbSBK

Issue type : kbinfo

Technology : kbWin95search kbOPKSearch kbWin95OPKOSR25