When you use the Ping tool (Ping.exe) to test IP communication to a network resource, the networked computer or other device may stop responding (hang), or other errors may occur.

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Under some conditions, it is possible for the version of Ping.exe included with Windows 95 to send an IP packet that would be considered an invalid IP datagram. This may cause some systems to hang or encounter other errors.

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This issue is resolved by the following updated files for Windows 95:

   PING.EXE version 4.00.1381.3 (dated 12/14/96) and later
   MSVCRT.DLL version 4.20.6164 (dated 6/17/96) and later
				

These files are included in the self-extracting PINGUPD.EXE file.

The following file is available for download from the Microsoft Download Center:
For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

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This issue is resolved in Microsoft Windows 98.

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A computer running Windows NT or Windows 95 does not experience the symptoms described above, but these symptoms may occur on other systems such as Unix hosts, Macintosh computers, or network printers.

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