Hi Mark,

Here's how I setup remote debugging to debug the C# assembly that is called
by ASP code:

Configuration:

Server "V1": Windows 2003, IIS 6.0, installed .NET 2.0
Client "H3": Windows XP, Visual Studio 2008

1. Create ClassLibrary1 on H3, enable "Make assembly COM-Visible" and
"Register for COM interop"; with Class1 as following:

namespace ClassLibrary1 {
   public class Class1 {
       public string Hello() { return "Hello"; }
   }
}

2. Install Visual Studio Remote Debugger (you can find the installation
files from your Visual Studio 2005/2008 setup disk) on V1, configure it to
use a service account that is part of Administrators group.

3. Copy over the generated .dll, .pdb, .tlb files from H3 to V1, run
%windir%\Microsoft.NET\Framework\v2.0.50727\regasm.exe /codebase
<path_to_ClassLibrary1.dll> to register it on V1

4. Create test.asp on V1:

<% set x = CreateObject("ClassLibrary1.Class1") %>
<%= x.Hello() %>

5. Create a dummy ASP.NET 2.0 website in the same application pool as the
ASP website and create a dummy ASP.NET WebForm in it (This step is required
to make sure the IIS worker process is recogonized as a managed process to
successfully attach it in later steps)

6. Run command "iisreset" to make sure the IIS worker process is closed
first; then visit the ASP.NET 2.0 WebForm first to make sure .NET 2.0
runtime is loaded into the worker process.

7. Test test.asp in browser to make sure it works.

8. On H3, in Visual Studio, select "Debug/Attach to Process...", input "V1"
in the "Qualifier" field and click button "Refresh"; select w3wp.exe from
the list (make sure its type is shown as "Managed,x86"; then click button
"Attach".

9. Now if you add a breakpoint on the managed code and refresh the ASP page
in browser, it should hit successfully.

Without steps 5 & 6, the w3wp.exe is not shown as managed type and we
cannot make the breakpoints in managed code to be hit.

Regards,
Walter Wang (wawang@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

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