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Machine Locks When Shelling Out To DOS With C
DocumentID: 651960
Revision Date: 29-Feb-96 8:29:11 PM

The information in this document applies to:
WordPerfect® 5.1 for DOS

Problem

Symptoms: A customer loading Microsoft Windows, DOS 4.01, and WordPerfect 5.1 cannot shell out to DOS using Ctrl-F1 without locking his computer. He did not have this problem when he was using an earlier version of DOS. Solutions: The problem only occurred when DOS 4.01 was loaded. Since removing DOS 4.01
and re-loading DOS 3.3, the problem has not occurred. If running WP under Windows it would be cleaner and more efficient to "Alt ESC" out of WP and start a new DOS Windows session by clicking on the DOS icon in group main. The reason being that Windows 3.0 in Enhanced mode creates virtual 8086 machines for each DOS application. Windows does not take into account having to run a program from within a program which is what is happening by using the go to DOS command from within WP. There is simply not enough resources available for MS Windows to run WP and do even a simple DOS command using the Go to Shell option.

Answer:

Details:


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