How do I determine if a path is relative or absolute with VB Scripting Host

set oFSO = CREATEOBJECT("Scripting.FileSystemObject")

relativePath = ""
absolutePath = "c:\test"

MsgBox UCase(relativePath) = UCase(oFSO.GetAbsolutePathName(relativePath))
MsgBox UCase(absolutePath) = UCase(oFSO.GetAbsolutePathName(absolutePath))