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Description of Microsoft Windows 95 Service Pack 1 Updates

This article was previously published under Q143003
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
This article contains information about the updates included withMicrosoft Windows 95 Service Pack 1.

For information about obtaining Microsoft Windows 95 Service Pack 1,please see the following article in the Microsoft Knowledge Base:
142794 Availability of Microsoft Windows 95 Service Pack 1
The following updates are provided with Microsoft Windows 95 ServicePack 1 and are installed when you run Setup.exe.

File and Printer Sharing for Microsoft Networks Update

Vserver.vxdNew file version:

This update corrects a problem with File and Printer Sharing for MicrosoftNetworks and Samba's SMBCLIENT UNIX network client. The update corrects aproblem with share-level security and includes a correction for a similarproblem with user-level security that Microsoft recently discovered as partof its internal testing of the new driver. Windows 95 allows users of theSamba SMB client to access the drive on which sharing is enabled byaccepting certain specific networking commands. The Samba client is theonly known SMB client that sends such networking commands.

SMBCLIENT users do not automatically have access to the drive on theWindows 95-based computer, and must know the exact steps to send thesecommands. The updated driver prevents Windows 95 from accepting thesecommands, preventing SMBCLIENT users from accessing the drive on whichsharing is enabled. With the updated driver, the SMBCLIENT user has accessonly to those shared folders that the Windows 95 user has designated. Formore information on this update, please see the following article in theMicrosoft Knowledge Base:
128079 Updated Drivers for File and Printer Sharing Security

File and Printer Sharing for NetWare Networks Update

File: Nwserver.vxdNew file version:

Microsoft recently became aware of an issue with File and Printer Sharingfor NetWare Networks that may affect data security for corporate users. Ifyour computer is configured for file and printer sharing and the RemoteAdministration service is enabled, another user on the network may gainread-only access to your computer after the administrator has logged offand before you have restarted your computer. To correct this problem,Microsoft has released an updated driver for File and Printer Sharing forNetWare Networks. The updated driver ensures that only valid administratorshave access to the computer's hard disk.

For additional information, please see the following article in theMicrosoft Knowledge Base:
128079 Updated Drivers for File and Printer Sharing Security

LPT Port Driver Update for ECP Ports

File: Lpt.vxdNew file version:

Microsoft Windows 95 Service Pack 1 automatically installs a version ofthe parallel port driver (Lpt.vxd) that corrects issues seen on somecomputers equipped with ECP ports. This driver is functionally identicalto Lpt.vxd version, which is included on the Windows 95 CD-ROMin the Drivers\Printer\Lpt folder.

Microsoft Client for Microsoft Networks Update

File: Vredir.vxdNew file version:

The Client for Microsoft Networks update fixes a problem that affects onlyWindows 95 users who use Samba servers. The problem arises from the basicWindows 95 and UNIX file name formats. UNIX allows file names that includethe "\" and "*" characters, but these are wildcard characters in Windows95. If a Samba server contains a file named \\<server>\<share>\*.* (whichis a valid UNIX file name), and you try to delete this file from a Windows95-based computer using Windows Explorer or My Computer, all the files on\\<server>\<share> are deleted instead. The updated version of the Clientfor Microsoft Networks prevents this from occurring by rejecting file namesthat contain the "\" or "*" characters.

For additional information, please see the following article in theMicrosoft Knowledge Base:
140558 Deleting Files on Samba Servers May Delete Local Files Instead

Microsoft OLE32 Update

File: Ole32.dllNew file version:

The Windows 95 OLE32 update addresses file-management behavior inMicrosoft Word, Microsoft Excel, and Microsoft PowerPoint for Windows 95,versions 7.0. Because of the way these programs use OLE for file storage,document files created in these programs may contain extraneous data frompreviously deleted files. This data is not visible while you use theprograms. However, it may be possible to view a document file usingNotepad or file-utility software and find legible pieces of informationfrom previously deleted files. This may pose information security andprivacy concerns if you distribute electronic versions of files createdusing these programs. The OLE32 update corrects this behavior. Althoughthe problem is known to occur only in Microsoft Excel, Word, andPowerPoint for Windows 95, the OLE32 update is designed to prevent anyprogram from potentially causing the same problem.

NOTE: There is a newer OLE update for Windows 95 than the update containedin Service Pack 1. The newer update fixes the problem described above, aswell as two other issues. For information about the newer update, pleasesee the following article in the Microsoft Knowledge Base:
139432 OLE Update for Windows 95

Microsoft Plus! System Agent Update Update

File: Sage.dllNew file version:

The Microsoft Plus! Update Kit provides an updated version of the Sage.dllfile to fix a minor problem with System Agent. When System Agent version1.0 is running, programs that perform floating-point calculations may beslightly off in precision. This problem does not occur if System Agent isdisabled. For more information on this update, see the following article inthe Microsoft Knowledge Base:
140479 Updated Sage.dll File Corrects Floating-Point Math Errors

Windows 95 Common Dialog Update

File: Comdlg32.dllNew file version:

This update corrects an issue that occurs when 32-bit programs print usingWindows 3.1 monolithic drivers or the Windows 3.1 Pscript.drv andUnidrv.dll drivers in Windows 95. When you use this configuration, theprogram may stop responding (hang).

Windows 95 Password List Update

File: Mspwl32.dllNew file version:

File: Net.exeNew file version: 4.00.951

The Windows 95 Password List update version 4.00.951 protects your passwordfile against potential security violations. When you connect to a password-protected resource, such as a network drive, you can choose to save thatpassword. Windows 95 then stores the password in an encrypted file on yourhard disk. Recently, an algorithm was posted on the Internet for decryptingthis file. If someone has access to your password file and knows thedecryption algorithm, he or she may be able to decrypt it and the passwordsit contains, gaining access to the password-protected resources. ThePassword List update provides vastly improved encryption that is 2^96 (2 tothe 96th power) harder to decrypt than the previous encryption method.

Microsoft has released the Windows 95 Password List update version9.00.952. For more information on this update, see the following article inthe Microsoft Knowledge Base:
132807 Enhanced Encryption for Windows 95 Password Cache

Windows 95 Shell Update

File: Shell32.dllNew file version:

This update to the Windows 95 Shell32.dll file fixes a problem in which afile copied onto itself can be truncated to a zero-length file. This occursonly in the following circumstances:
  • When you copy a file onto itself using two different views of the same network resource (these can be different mapped drive letters or UNC connections to a network resource).
  • When you copy a file onto itself using a drive that was created by the SUBST command.
This update to the Shell32.dll file also makes it possible to browse NovellNetWare Directory Service printers from the Add Printer Wizard (providedyou have installed the Service for NetWare Directory Services).

For additional information, please see the following article in theMicrosoft Knowledge Base:
138014 File May Be Truncated to Zero Bytes When Copied Onto Itself

Article ID: 143003 - Last Review: 11/15/2006 17:16:04 - Revision: 1.1

  • Microsoft Windows 95
  • KB143003