DOCUMENT:Q78410 17-DEC-2000 [msdos] TITLE :System Hangs with dBase III 1.0 or III+ 1.0 PRODUCT :Microsoft Disk Operating System PROD/VER:MS-DOS:5.x,6.0,6.2,6.21,6.22 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft MS-DOS operating system versions 5.0, 5.0a, 6.0, 6.2, 6.21, 6.22 ------------------------------------------------------------------------------- SYMPTOMS ======== Borland/Ashton-Tate has confirmed that dBase III version 1.0 and dBase III+ version 1.0 may cause your system to stop responding (hang) if HIMEM.SYS is installed. CAUSE ===== dBase III 1.0 and III+ 1.0 include a feature called SuperLock that conflicts with HIMEM.SYS. According to Borland/Ashton-Tate, SuperLock is a copy-protection feature that allows you to install dBase III 1.0 and III+ 1.0 only once to a hard drive. WORKAROUND ========== Adding the /CPUCLOCK:ON switch to the HIMEM.SYS line in your CONFIG.SYS file may resolve this conflict. If you are using dBase III or III+, add the following line to your CONFIG.SYS file device=[drive]:\[dir]\himem.sys /cpuclock:on where "[drive]" and "[dir]" indicate the location of the HIMEM.SYS driver. The /CPUCLOCK:ON switch slows HIMEM.SYS, allowing it to wait longer for signals. This affects the speed of HIMEM.SYS, but not the system clock speed. Early versions of dBase were written for slower machines. MORE INFORMATION ================ For more information, contact Borland/Ashton-Tate technical support. The products included here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability. Additional query words: 6.22 5.00 5.00a 6.00 6.20 lock up plus ashton tate 3rdparty ====================================================================== Keywords : Technology : kbMSDOSSearch kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS500 kbMSDOS500a Version : MS-DOS:5.x,6.0,6.2,6.21,6.22 ============================================================================= 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.