How do I get meaningful error messages in IIS7?

Question

I have moved this question to Server Fault where it is probably more appropriator.

I have a classic ASP website that is crashing in IIS7. It is crashing because IIS doesn't allow file uploads greater than a certain size. I know this because files below about 200k work fine. I removed the Status Code 500 error in IIS but I still don't get a file name and the line where my code failed as I do when running locally.

Instead I get:

"The page cannot be displayed because an internal server error has occurred. If you are the system administrator please click here to find out more about this error."

How do I get a file name and the line where my code failed?

Here are my IIS settings:

AND THE ANSWER FROM SERVERFAULT IS...

Login as an admin on the IIS server, open IIS 7 Manager, the open the Asp icon under the Web site you want to change the error messages for (it'll be on the right with all the other icons; it's the first one).

Scroll down and change Send Errors To Browser to True. Might have to iisreset, not sure.

Answer 1

Detailed error messages its called. Very helpful during testing

http://blogs.iis.net/bills/archive/2006/10/19/Improving-Custom-Errors-for-IIS7-Server.aspx

Answer 2

It's not exactly answer to your question about error page, but if you have problem with uploading big files, you probably should change AspMaxRequestEntityAllowed settings in IIS. http://forums.iis.net/t/1130837.aspx