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Visual Basic Notes

The Visual Basic - SICStus Prolog interface consists of the following files:

• vbsp.dll (installed as SICStus Prolog 3.12.1\bin\vbsp.dll)
• vbsp.bas (installed as SICStus Prolog 3.12.1\library\vbsp.bas)

In order to use the interface, perform the following steps:

• Include the file vbsp.bas in your Visual Basic project.
• During development, the easiest way is to put e.g. C:\Program Files\SICStus Prolog 3.12.1\bin in the PATH environment variable (see Windows). Under Windows 2000 and later, PATH is set in the control panel System. Under Windows 9x/ME, this is set in autoexec.bat. Consult your OS documentation for details.

  Note that when running your Visual Basic project in the Visual Basic debugger, the directory of the current application is the directory that contains the Visual Basic debugger and not the directory that contains your Visual Basic project.

  In a target system, you need to make the SICStus runtime DLL etc. available; see Runtime Systems on Windows Target Machines. In this case, vbsp.dll should be located at the same place as the SICStus run-time (sprt312.dll).

  If VB cannot find the SICStus run-time files, it will report something similar to
  

  File not found: VBSP
  

  Please note: Never move or copy SICStus-related files to the Windows system folder.