Microsoft KB Archive/93008
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
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 "Out of Memory" 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.
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.
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
Technology: kbAudDeveloper kbVB100DOS kbVBSearch kbZNotKeyword3