IIS6 safety is too high. Do not allow access to the parent directory. Worry people.

Issue 1: Parent Path not enabled
Examples of symptoms:
Server.MapPath () error ' ASP 0175:80,004,005 '
The Path character is not allowed
/0709/dqyllhsub/news/opendatabase.asp, line 4
The character ' ... ' is not allowed in the Path parameter of MapPath.
Reason Analysis:
Many web pages use things like. /formatted statement (that is, the page that returns to the previous layer, which is the parent path), and IIS6.0 for security reasons, this option is turned off by default.
Workaround:
In IIS, the properties-> the home directory-> configuration-> option. Check the "Enable Parent path" front. Confirm the refresh.