Cannot debugging asp.net on IIS7 by attaching process w3wp

Question

I have a asp.net website in VS2008 which I have pre-compiled in local directory which is virtual directory for IIS 7（http://machinename:83）

when i 1. launch http://machinename:83/ 2. VS2008-->debug-->Attach to Process..-->select w3wp.exe 3. set the breakpoint in code in VS2008 4. run app

while i found it cannot go to the breakpoint. (i m sure the breakpoint must be run)

anybody can help me on this?

Answer 1

What you're doing should work, but you can try this, which is frequently used to debug Windows services upon startup:

System.Diagnostics.Debugger.Launch();

Just put it on the line where you want to start debugging, and the OS will prompt you to attach.

Answer 2

If you are using the Publish Web Site feature in Visual Studio, then make sure that the 'Emit debug information' checkbox is checked.