Indicates the scripting language currently in use.
According to the documentation, the function returns the values shown in the following table:
Visual Basic for Applications
The function is implemented in VBScript.dll, as well as in JScript.dll. However, it is not implemented in the VB Version 6 runtime libraries. Calls to this function from VBA code will generate an error rather than return the string “VBA”.
This function is not supported in VBA.