How to debug a C# .NET application in Visual Studio 2010 that is started from another process

Question

I have a .NET GUI application written in C# and a PDF printer. The PDF printer has a field where you can set a command to start an external application.

In this case

Answer 1

You can attach to a process when it starts using a small registry tweak.

Go to

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options

Create a new key with the name of the executable as it will appear in Task Manager, for example, myapp.exe. Under this, create a new string value called debugger and set it to vsjitdebugger.exe.

Now, when the EXE file is triggered, a window will appear asking which debugger to attach to.