Defining Local and Remote Drive Visibility Under Windows NT 4.0 or Windows 2000
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The NODRIVES entry (reg_dword) located in
uses a 32-bit word to define local and network drive visibility foreach logical drive in the computer.
The lower 26 bits of the 32-bit word correspond to drive letters Athrough Z. Drives are visible when set to 0 and hidden when set to 1.Drive A is represented by the rightmost position of the bitmask whenthe radix is viewed in binary mode.
A bit mask of 11111111111111111111111111 (0x3FFFFFFh) would hide all driveletters.
Administrators may also use the NODRIVES entry to disable access to floppydrives on a per-user basis, replacing functionality previously found inthe Floplock.exe utility from the Windows NT 3.x resource kits.
Drives hidden using the NODRIVES setting are not available through WindowsNT Explorer, under the My Computer icon, or in the File Open\Save dialogboxes of Windows applications. File Manager and the Windows NT commandprompt are not affected by this registry setting.
NOTE: If you hide the System drive it is not available under the MyComputer icon or in the File Open\Save dialog boxes, however it is visiblein Windows NT Explorer.
Article ID: 158457 - Last Review: 02/26/2007 19:38:34 - Revision: 2.2
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