When you try to access a Macintosh-formatted floppy disk by using the MacDrive 95/98 program, you may be unable to do so, and you may receive the following error message:

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This problem can occur if the following Windows 95 floppy disk driver is installed in the Windows\System\Iosubsys folder: This version of Hsflop.pdr reports that a disk is not formatted if the disk does not have a valid media byte. Disk that are formatted for Macintosh do not have a valid media byte.

This version of Hsflop.pdr is included in the update described in the following article in the Microsoft Knowledge Base: These updated files may also be preinstalled on some computers running Microsoft Windows 95 OEM Service Release 2, 2.1, or 2.5.

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This problem no longer occurs in Windows 98. To resolve this problem, install the current version of Windows. For information about the current version of Windows, visit http://www.microsoft.com/windows (http://www.microsoft.com/windows).

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The third-party product discussed in this article is manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

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