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Browse Prior Art Database

Technique for Finding Diagnostic Information Imbedded Within a DOS Extension

IP.com Disclosure Number: IPCOM000039044D
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Garrison, JM [+details]

Abstract

A method is described which allows an application program to find diagnostic information stored at a random memory address within a resident DOS extension. At various times, it is useful to examine diagnostic or performance data which is accumulated by a program running as a resident DOS extension, where the diagnostic/performance information is stored in memory within the DOS extension itself. It is also useful to be able to examine the diagnostic in a passive manner, without executing code in the DOS extension. This is particularly important when the act of executing code within the DOS extension perturbs the diagnostic information stored in memory. A technique is described which allows a DOS application to find the DOS extension and the diagnostic information defined within.