Microsoft KB Archive/50470

From BetaArchive Wiki
Knowledge Base

.BAS in Set Paths for Include Files in QB 4.50 Options Menu

Article ID: 50470

Article Last Modified on 11/21/2006


  • Microsoft QuickBasic 4.5 for MS-DOS
  • Microsoft BASIC Professional Development System 7.0

This article was previously published under Q50470


In the QB.EXE editor in Microsoft QuickBasic Version 4.50, and the QBX.EXE editor in Microsoft Basic PDS 7.00, there is a box for "Include Files (.BI, .BAS):" in the Set Paths command on the Options menu. The ".BAS" and ".BI" in the parentheses are only examples of the three-character name extensions possible for Include files. The (.BI, .BAS) box refers ONLY to the path to find Include files and does NOT relate to any other feature.

All filename extensions will be searched for in the specified directory, not just Include files with the extensions .BI and .BAS.

This information applies to QuickBasic 4.50 and QBX.EXE for Basic PDS 7.00. (Versions of the QB.EXE editor earlier than 4.50 don't have a Set Paths command or an Options menu.)


The "Include Files (.BI, .BAS):" option refers to which directory will be searched for Include files at compile time when the REM $INCLUDE metacommand is used in the source code.

If no explicit path qualifies the filename in the REM $INCLUDE: 'filename' statement, QuickBasic will search for the file in the following directories in exactly the following order:

  1. The current directory
  2. The directory specified by the "SET INCLUDE=" environment variable (set with the MS-DOS SET command in the AUTOEXEC.BAT file.)
  3. The directory specified in the "Include Files (.BI, .BAS):" box in the Set Paths command of the Options menu.

In the following example, the file BOB.INC will be searched for in the current directory, the directory specified by "SET INCLUDE=", then in the Set Paths directory:


Additional query words: QuickBas

Keywords: KB50470