Microsoft KB Archive/113235

= Cannot Access Volume Serial Number with 32-Bit File Access =

Article ID: 113235

Article Last Modified on 9/25/1999

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APPLIES TO


 * Microsoft Windows for Workgroups 3.11

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This article was previously published under Q113235



SYMPTOMS
When you type vol at an MS-DOS command prompt within Windows for Workgroups, only the volume label line is returned. For example, you receive

Volume in drive C is MYHARDDRIVE

but you do not receive the volume serial number entry, for example:

Volume Serial Number is 16E1-2263



CAUSE
If you have 32-bit file access enabled, you cannot access the volume serial number entry line in an MS-DOS session within Windows for Workgroups or when running MS-DOS-based applications under Windows for Workgroups.



WORKAROUND
If you have a program that requires the serial number, you have two options:


 * Disable 32-bit file access. To do this, choose the 386 Enhanced icon in Control Panel, choose Virtual Memory and Change, and then clear the 32-Bit File Access check box.

-or-
 * Run the application outside Windows.



MORE INFORMATION
Some third-party software packages use the hard disk drive serial number as part of a copy detection/protection scheme. When the software is installed, it keeps an internal record of the hard disk drive serial number and does not work correctly if you start the software in an MS-DOS session when 32- bit file access is active. The software package checks for the serial number, but since it is no longer available to MS-DOS, the authentication process fails, and the software does not load.

Additional query words: vfat 3.11 Copy-protect Virtual

Keywords: KB113235

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