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Single User I.P.B. 1024 21st March 1991 (CD)
Department Category Implementation
DOS Apps Software Advisory
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Windows 3.0 Unrecoverable Application Error

See Also
IPB 2029 - IPB 1015 - IPB 1016
IPB 1030 - IPB 2046 - IPB 2050
IPB 2063 - IPB 2078 - IPB 2086

This error is produced only in Standard or Enhanced mode with Windows 3.0, and indicates that an application has caused a protection violation, e.g. has tried to write to a memory space to which it does not have access.

If you receive this error, the Windows 3 system will be unstable until you Exit and re-boot the system. After one application has caused this error, running further applications before re-booting may also display the same error, even though they are not the cause.

Possible common causes of these errors are:

  • Running a Windows 2 application in Standard or Enhanced mode. Unless the application was developed for Windows 3 Enhanced mode, WIN /R should be used.
  • Selecting an incorrect machine type or network when setting up Windows 3. 3Com 3+Open, Banyan Vines, LAN Manager and IBM PC LAN environments must be specifically set up in Windows otherwise errors may occur.
  • Terminate and Stay Resident (TSR) programs in Config.sys or Autoexec.bat may not be supported by Windows 3. Temporarily remove suspect lines from these files and re-test Windows until the problem driver is found.
  • A page-mapping conflict between adapters and Windows 3. Try running in WIN /S mode, the error should not occur. If this is the case, add the line EMMExclude=A000-EFFF to the SYSTEM.INI file in the [386ENH] section.
  • Incorrect versions of DOS may cause the error; you must not have anything other than Apricot MS-DOS version 3.30 or later. If you have a machine with DOS 3.2 or earlier, although the machine may work, Apricot will not support the system until it is updated with Apricot MS-DOS 3.30 or later.
  • If you are running in a low memory environment or doing some DDE (Dynamic Data Exchange) operations, contact your Windows supplier.

There are no particular Apricot issues with this error and under no circumstances should a machine be returned due to Unrecoverable Application Errors occurring.

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Computing for a Connected World