Using Oracle 5.1c with EMM386.EXE (78527)

The information in this article applies to:
    Microsoft MS-DOS operating system 5.0
    Microsoft MS-DOS operating system 5.0a
    Microsoft MS-DOS operating system 6.0
    Microsoft MS-DOS operating system 6.2
    Microsoft MS-DOS operating system 6.21
    Microsoft MS-DOS operating system 6.22

This article was previously published under Q78527


When you use Oracle 5.1c with EMM386.EXE, the following error is displayed when you try to execute ORACLE.BAT:

EMM386 Privileged operation error #00 -
Deactivate EMM386 and Continue (C) or reboot (B) (C or B) ?


Oracle is a complete database system. It has the ability to run in protected mode on an 80286, 80386, or 80486 computer with the use of its own protected-mode kernel. Oracle 5.1c runs correctly with HIMEM.SYS and DOS=HIGH. However, if the EMM386.EXE privileged operation error occurs when ORACLE.BAT is executed, Oracle may need to be reconfigured to run on a Virtual Control Program Interface (VCPI) machine type.

There is an option in the Oracle setup program to specify the type of computer on which Oracle is being installed. If Oracle 5.1c is being set up for the first time and EMM386.EXE is being used, select VCPI as the machine type. (EMM386.EXE is a VCPI host.) If Oracle is already installed, the machine type can be changed by typing the command machtype at the MS-DOS command prompt. This command runs the setup program that allows you to change the machine-type option.

Oracle requires a minimum of 894 kilobytes expanded memory, so the DEVICE line for EMM386.EXE in the CONFIG.SYS should read as follows:
   device=c:\dos\emm386.exe ram 1024
If Oracle reports insufficient memory to run a specific task with the above line in the CONFIG.SYS file, increase the amount of expanded memory that EMM386.EXE creates.

Oracle 5.1c is manufactured by Oracle Corporation, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

Modification Type: Major Last Reviewed: 5/12/2003
Keywords: KB78527