on my server(win2003 & iis6), i used vs6 to create a web project,and i submit a form to another page, always prompt "http 500 internal server error", and after it , i press F5 to refresh the page, so strange, the page can be shown, but lost all value that sent from submit form.

but when i copy the code to another virtual directory(not created by VS6,only used IIS to created), fortunally the code runs smoothly.

do't know how to slove it , can anyone helps me?

(and i also heard some suggestion about the tunning of IIS6, maybe caused by the security setting of IIS6, but i had tried to adjust some setting of IIS6, seems no any effect)

I not the expert, but I was encountering the same error 500. I have discovered that going to IE Internet options-> advanced-> select the use passive FTP for firewall. It fixed me right up, now I have some other issued regarding ftp forms and html.

uhm~~~now i also haven't the solution about it ..:(~```don't know whether it releated the configuration of the server.:(~

You got an error in your app, if you can't see the error report check your browser settings.
The reason you can see the page after pressing F5, is that your browser refresh the page without your form data, remember that this is a new request. When you get an error the error object lives in the memory, until you do a new request. You say that you code runs anyway? Apparently it's not a fatal error.
Your might want to check what changes you made in your pages.

Regards - Jon