Solution to an IE 500 Error

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A Bentley WebPublisher system was run a few days ago. Opening a page (http: // localhost/examples/asp/WhistlerDemo/default.htm knows that WebPublisher has been used) is a framework, several asp Web pages are installed inside, and the pages are opened, and errors 500 are everywhere. Open IE-the "show friendly errors" in the advanced section and find that asp code accesses the parent directory, copy the parent directory to the local directory and modify the asp code. I think this is not a way. A dvbbs 7.0 sp2 is installed on the home machine, and the problem persists. Finally, as prompted by Lex, find the answer:
Originally, for the sake of security, II6 does not allow access to the parent directory by default, as long:
In IIS, choose Properties> Home directory> Configuration> options. Check "enable parent path. Run again. Everything is OK.