object

Required. Always the name of a FileSystemObject.

foldername

Required. String expression that identifies the folder to create.

An error occurs if the specified folder already exists.

The following code illustrates how to use the CreateFolder method to create a folder.

var fso = new ActiveXObject("Scripting.FileSystemObject");
var a = fso.CreateFolder("c:\\new folder");

Function CreateFolderDemo
   Dim fso, f
   Set fso = CreateObject("Scripting.FileSystemObject")
   Set f = fso.CreateFolder("c:\New Folder")
   CreateFolderDemo = f.Path
End Function

Reference