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 CreateFolder method returns a Folder object.

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