<%
Function IsObjInstalled(strClassString)
On Error Resume Next
IsObjInstalled = False
Err = 0
Dim xTestObj
Set xTestObj = Server.CreateObject(strClassString)
If 0 = Err Then IsObjInstalled = True
Set xTestObj = Nothing
Err = 0
End Function
%>

<% if IsObjInstalled("Scripting.FileSystemObject") = False Then %>
不支持FSO
<% Else %>
支持FSO
<% End If %>