When you install CX-Supervisor a reference manual for VBScript is included in the ActiveX Demo folder:
C:\Program Files\OMRON\CX-Supervisor\Demos\ActiveX\VBScript\VBS55.CHM
You can also find a copy of this manual by searching most Windows PCs for a file called VBS55.CHM, vbscrip5.chm or script56.chm and double clicking the file.
The file vbscrip5.chm is attached to this article.