DOCUMENT:Q123441 17-DEC-2000 [win95x] TITLE :Windows 95 DriveSpace Err Msg: Windows Cannot Perform... PRODUCT :Microsoft Windows 95.x Retail Product PROD/VER: OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows 95 ------------------------------------------------------------------------------- SYMPTOMS ======== When you use the Windows 95 DriveSpace compression utility to delete a compressed drive, the following error message is displayed: Windows cannot perform this operation because the enhanced mode disk compression driver could not be loaded. You may need to run setup again to install additional disk components. DRVSPACE 545 CAUSE ===== This problem occurs if the Windows 95 protected-mode DriveSpace driver (DRVSPACX.VXD) is missing or corrupted. In such cases, Windows 95 loads the real-mode DriveSpace driver. Deletion operations are not possible with the real-mode driver. RESOLUTION ========== To correct this problem, extract the file DRVSPACX.VXD from the original Windows 95 disks or CD-ROM. To extract the file, perform the following steps: 1. Rename the DRVSPACX.VXD file on your hard disk. This file should be located in the WINDOWS\SYSTEM\IOSUBSYS subdirectory. a. To rename this file, first click the Start button on the taskbar. On the Find menu, click Files Or Folders. b. In the Find: All Files dialog box, type "drvspacx.vxd" (without the quotation marks) in the Named box. Click the Find Now button. NOTE: If DRVSPACX.VXD is missing, that is, it is not found on the hard disk that contains Windows 95, skip to step 2 below. c. In the file listing box, use the right (secondary) mouse button to click the file DRVSPACX.VXD and then click Rename. Rename the file DRVSPACX.OLD and then press ENTER. NOTE: It is important that you use an extension other than .VXD when renaming files. 2. Extract a new DRVSPACX.VXD from the Windows 95 disks to the WINDOWS\SYSTEM\IOSUBSYS subdirectory. To extract the file, insert Disk 11 in the floppy disk drive, or insert the Windows 95 Setup CD in the CD-ROM drive, then follow the steps below. a. On the taskbar, click Start. On Programs menu, click MS-DOS Prompt. b. At the command line, type the following " extract /l :\windows\system\iosubsys :\A drvspacx.vxd " (without the quotation marks) where indicates the letter designating the drive containing the floppy disk or CD-ROM. 3. Restart the system. NOTE: For additional information about the EXTRACT command, type "extract /?" (without the quotation marks) at the MS-DOS prompt. MORE INFORMATION ================ If DRVSPACX.VXD becomes corrupted or is accidentally deleted from the system, the real-mode driver loads by default. DriveSpace cannot perform any operation using the real-mode driver while running under Windows 95. However, some operations (such as unmount and change letter) can be performed by making changes to the DRVSPACE.INI file and then restarting the system. However, the FORMAT and DELETE commands cannot be performed without the full support of the file system. These commands cannot be run with the real-mode driver. Additional query words: err msg drive space compression remove delete ====================================================================== Keywords : Technology : kbWin95search kbZNotKeyword3 ============================================================================= 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 2000.