object

Required. Always the name of a FileSystemObject.

path

Required. The path specification for the component whose extension name is to be returned.

For network drives, the root directory (\) is considered to be a component.

The GetExtensionName method returns a zero-length string ("") if no component matches the path argument.

The following example illustrates the use of the GetExtensionName method.

JScript	Copy Code
function ShowExtensionName(filespec) { var fso, s = ""; fso = new ActiveXObject("Scripting.FileSystemObject"); s += fso.GetExtensionName(filespec); return(s); }

Visual Basic Script	Copy Code
Function GetAnExtension(DriveSpec) Dim fso Set fso = CreateObject("Scripting.FileSystemObject") GetAnExtension = fso.GetExtensionName(Drivespec) End Function

Reference