Microsoft KB Archive/111757

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CD-ROM Always Shows 127 MB Used and Zero Bytes Free

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Q111757

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The information in this article applies to:


 * Microsoft Windows versions 3.0, 3.0a, 3.1, 3.11
 * Microsoft Windows for Workgroups versions 3.1, 3.11
 * Microsoft MS-DOS operating system versions 4.0, 4.01, 5.0, 5.0a, 6.0, 6.2, 6.21

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SUMMARY
When you view disk information for a CD-ROM in File Manager, free disk space is always reported as zero (0) bytes, and total disk space in use is always reported as approximately 127 megabytes.

Microsoft Mulitmedia CD-ROM Extensions (MSCDEX.EXE) is coded to report a specific number for both free space and bytes in use. Microsoft has confirmed this to be a limitation of MSCDEX.EXE (all versions).

Microsoft Windows NT uses a different file system for addressing CD-ROM drives and does not have this limitation.

Additional query words: wfw wfwg MSDOS DOSSHELL DOS SHELL FILE 131070 134215 130048 kbmm mmtitles 4.0 4.00 4.00a 4.01 5.00 5.00a 5.0 5.0a 6.00 6.20 win30 win31

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Issue type :

Technology : kbAudDeveloper kbWin3xSearch kbWFWSearch kbWin300 kbWin300a kbWin310 kbWin311 kbWFW310 kbWFW311 kbMSDOSSearch kbMSDOS400 kbMSDOS621 kbMSDOS620 kbMSDOS600 kbMSDOS500 kbMSDOS401 kbMSDOS500a