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Q44230: MARKEXE.EXE in OS/2 May Cause .EXE Hang at Run Time

Article: Q44230
Product(s): See article
Version(s): 6.00 6.00b 7.00
Operating System(s): OS/2
Keyword(s): ENDUSER | SR# S890424-101 | mspl13_basic
Last Modified: 4-JAN-1990

Microsoft BASIC Compiler programs running in OS/2 protected mode take
over the full screen by default and will not run from an OS/2
Presentation Manager (PM) windowed environment unless you first alter
the .EXE program's header with the MARKEXE utility or with PM's Start
Programs window (as shown further below).

It has been reported that system crashes may intermittently occur
while running graphics-mode programs from the PM windowed environment.
Only nongraphics programs using SCREEN 0 in a PM windowed environment
seem to work without problems, and this is not always the case either.
It has also been reported that system crashes have occurred while
running character-mode (SCREEN 0) programs from within a PM windowed
environment.

Microsoft has not tested programs running within a PM window that were
compiled with Microsoft BASIC Compiler Versions 6.00, 6.00b, or
Microsoft BASIC PDS Version 7.00. This feature is under review and
will be considered for inclusion in a future release.

While there are problems running BASIC programs from within a PM
window, you can write OS/2 Presentation Manager (PM) applications
using BASIC compiler Versions 6.00 and 6.00b and BASIC PDS Version
7.00. This information is detailed in a separate article that can be
found by querying on the following words:

  OS/2 and Presentation and Manager and BASIC

The MARKEXE.EXE utility program is shipped on the Toolkit 1 disk
with the Microsoft OS/2 Software Development Kit and is used for
altering the header of a bound or protected-mode executable program
(.EXE) to run from a PM windowed environment. The following is an
example of running MARKEXE:

   MARKEXE progname windowcompat

Another method to modify your compiled BASIC .EXE to run under a PM
window (in protected mode) is to do the following:

1. Choose the Add option from the Program menu of the Start Programs
   window in PM.

2. Choose Change from the Program menu. The Change Program Information
   window now appears.

3. Choose Other for the Program Type. Press the ENTER key. The How To
   Run The Program window now appears.

4. Choose Run The Program In A Text Window to run your program in a
   PM window. Press the ENTER key.

You can now run your program in a PM window from OS/2's Start Program
window or from the OS/2 full-screen command prompt.

If the program is deleted from the Start Program menu, the .EXE header
is changed back to what it was prior to being entered into the Start
Program menu.

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