Microsoft KB Archive/93008

= VBDOS.EXE Environment Screen Blanks Out When Many Files Loaded =

PSS ID Number: 93008

Article Last Modified on 1/8/2003

-

The information in this article applies to:


 * Microsoft Visual Basic for MS-DOS 1.0

-



This article was previously published under Q93008



SYMPTOMS
Under certain conditions, if you load a large number of files into the VBDOS.EXE programming environment, you may encounter a blank or partially blank screen. The number of files that can cause this problem varies, depending on your machine's memory configuration. Normally, the VBDOS.EXE environment displays an &quot;Out of Memory&quot; error message before you encounter this problem.

If this problem occurs, you must either decrease the number of loaded forms and modules, or increase the amount of memory available to the VBDOS.EXE programming environment to work around the problem.



STATUS
Microsoft has confirmed this to be a bug in the Standard and Professional Editions of Microsoft Visual Basic for MS-DOS, version 1.0. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.



MORE INFORMATION
Listed below is an example of this blank screen problem. Note that this problem only occurs when there is a low amount of conventional memory (approximately 350K or less) available.

Steps to Reproduce the Problem
 Start VBDOS.EXE.  Load the following files (or any files for this example) with the Add File... option from the File Menu:   Bookcard.frm          cmndlg.frm         setupopt.frm booklist.frm         controlP.frm       setuppth.frm booklook.frm         debug.frm          setupsts.frm booksrch.frm         fontdemo.frm       spindemo.frm bookstck.frm         graphics.frm       tbutdemo.frm calc.frm             helpf.frm          torus.frm chrtattr.frm         helputil.frm       chrtdata.frm notepad.frm          chrtsubs.bas       chrtfont.frm qlbview.frm          chrttype.frm       seek.frm bookgen.bas          clock.frm          setupmsg.frm chart.bas  While loading these files, you may notice the screen blanks out (either partially or completely). This will not be the case with some machines, however, because it depends on the way the machine's memory is configured.

Additional query words: VBmsdos BugList1.00 1.00

Keywords: KB93008

Technology: kbAudDeveloper kbVB100DOS kbVBSearch kbZNotKeyword3

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© 2004 Microsoft Corporation. All rights reserved.