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- DOCUMENT:Q104667 04-NOV-1993 [W_NT]
- TITLE :WinMaster Attempts Illegal Access to Hard Disk
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:buglist3.10
-
- ------------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system version 3.1
- - Microsoft Windows NT Advanced Server version 3.1
- ------------------------------------------------------------------------
-
-
- SYMPTOMS
- ========
-
- WinMaster by the PC-Kwik Corporation causes error messages when you
- attempt to install and use it in Windows NT 3.1. The most serious
- error message occurs if you try to use the PowerScope tool from the
- WinMaster utilities. After you attempt to open the PowerScope icon in
- the WinMaster Toolbox, the following error message appears in a dialog
- box titled "16 bit Windows Subsystem:"
-
- PowerScope: An application has attempted to directly access the hard
- disk, which cannot be supported. This may cause the application to
- function incorrectly. Choose 'Close' to terminate application.
-
- This dialog box gives you the options of Close or Ignore. If you
- choose Ignore, the PowerScope tool eventually causes a general
- protection (GP) fault.
-
- CAUSE
- =====
-
- Part of the functionality of WinMaster is to directly read disk
- information from the system hard disk in order to provide a disk
- directory, memory usage by directory, a disk map displaying usage and
- fragmentation, and information about the boot sector. Windows NT,
- however, does not allow applications to directly access the hardware.
- Therefore, the low-level WinMaster calls to the hard disk are illegal.
-
- RESOLUTION
- ===========
-
- Currently no workaround or solution to the problem exists. No solution
- may be possible because the WinMaster application makes low-level
- calls to the hardware, which are not supported in Windows NT.
-
- MORE INFORMATION
- ================
-
- The PowerScope tool has a number of utility buttons including Log
- Drive, Directory Tree, and Disk Map. Various errors occur when you
- attempt to use each of these utilities. When you choose the Log Drive
- button, the following error message appears:
-
- PowerScope! Error updating drive entry. Please update entire list.
-
- When you choose OK in this dialog box, a second error message appears
- which states:
-
- PowerScope! Unable to Log Drive!
-
- If you choose on the Directory Tree button, you will get the following
- GP fault message:
-
- POWERSCO caused a General Protection Fault in module PSCOPEW.EXE at
- xxxx:xxxx. [where the x's designate a hexadecimal memory address]
-
- When you select the Disk Map option, you will receive the following
- error message:
-
- Unable to Lock map buffer!
-
- This error message is followed by the following error message:
-
- Unable to lock FAT buffer!
-
- A GP fault identical to the one listed above will appear at this
- point. The memory address may vary, but the other information as
- listed above will be the same.
-
- Microsoft has confirmed this to be a problem in Windows NT. We are
- researching this problem and will post new information here as it
- becomes available.
-
- The PC-Kwik products included here are manufactured by vendors
- independent of Microsoft; we make no warranty, implied or otherwise,
- regarding these products' performance or reliability.
-
- Additional reference words: 3.10 fragmentation defragmentation quick
- pc-quick repair utility
- KBCategory:
- KBSubCategory:16ap
-
- =============================================================================
-
- THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
- PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
- ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO
- EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
- ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
- CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
- MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION
- OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
- SO THE FOREGOING LIMITATION MAY NOT APPLY.
-
- Copyright Microsoft Corporation 1993.