Microsoft KB Archive/98858

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PRB: DX5420 and DX1230 Errors from Incorrect SYSTEM.INI File

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Q98858

1.00 1.00a | 1.00 1.50 MS-DOS | WINDOWS kbtool kbprb -- The information in this article applies to: - The Microsoft C/C++ Compiler (CL.EXE) included with: - Microsoft Visual C++ for Windows, versions 1.0 and 1.5 - Microsoft Fortran PowerStation for MS-DOS, versions 1.0 and 1.0a -- SYMPTOMS ======== An attempt to build in an application in Microsoft Visual C++ or Fortran Powerstation may fail and the compiler generates the following messages: DOSXNT: system error DX5420: CheckDPMI: error when checking for coprocessor support DOSXNT: fatal error DX1230: DOSXNT initialization failed These errors usually occur soon after installation of these applications or another application for the Microsoft Windows operating system. CAUSE ===== These errors are related (DX5420 causes DX1230) and occur when a required virtual device driver is not available. RESOLUTION ========== Verify that the [386enh] section of your SYSTEM.INI file contains the following line: device=*vmcpd This line must only appear one time (Windows does not load if the line appears more than once). If you change your SYSTEM.INI file, you must close Windows and restart it for the changes to take effect. MORE INFORMATION ================ The Setup program adds the line above to the SYSTEM.INI file. If this error occurs, verify that you are using the SYSTEM.INI file that Setup modified or that you manually made all necessary changes to the SYSTEM.INI file. Additional reference words: 1.00 1.00a 1.50 8.00 8.00c KBCategory: kbtool kbprb KBSubcategory: CLIss FLIss

Keywords : kb16bitonly

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Technology : kbVCsearch kbAudDeveloper kbCVCComp