MIRROR: Unrecognized DOS INT 25h/26h Handler (74828)

The information in this article applies to:
    Microsoft MS-DOS operating system 5.0

This article was previously published under Q74828


After installing Microsoft MS-DOS 5 Upgrade you may receive the following error message when you start your computer:

Resident Delete Tracker.
WARNING! Unrecognized DOS INT 25h/26h handler. Some other TSR programs may behave erratically while delete-tracking is resident! Try installing Mirror BEFORE your other TSRs.
This problem occurs when PC Tools and MIRROR are installed with MIRROR included in your AUTOEXEC.BAT file.


This problem can occur when the DOS subdirectory is positioned after the PCTOOLS subdirectory in the PATH when you are still using PC Tools Deluxe version 6. To correct the problem, modify the PATH statement so that the DOS subdirectory comes before the PCTOOLS subdirectory. This order causes the MS-DOS 5.0 MIRROR (rather than PC Tools MIRROR) to load when you start your machine.

The product included here, PC Tools, is manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

Modification Type: Major Last Reviewed: 11/22/1999
Keywords: KB74828