ID Number: Q67792
1.00 1.10
MS-DOS
buglist1.00 buglist1.10
Summary:
Extensions written for the Programmer's WorkBench (PWB) versions 1.0
and 1.1 that require a call to the operating system do not work
correctly under DOS. One example of this is the FILTER.C sample
extension packaged with Microsoft C version 6.0.
When PWB.COM is executed under DOS, it spawns the main editor
(PWBED.EXE). PWBED.EXE is cleared from memory when a DOS shell is run
from within the editor. Once the shell has completed, PWBED.EXE is
reloaded from disk and initialized. The initialization is what causes
the problem because it also initializes any extensions to the editor
at the same time. This means that any information that the extension
was keeping track of is lost.
Microsoft has confirmed this to be a problem in PWB versions 1.0 and
1.1. We are researching this problem and will post new information
here as it becomes available.
Additional reference words: 1.00 1.10