Ways to Debug the Co-Installer

Hardware vendors developing a co-installer (.dll files that help with installing hardware devices) find it difficult to debug the co-installer code. The Microsoft article "How to debug a device installation co-installer" describes two methods for debugging the co-installer. You can attach the debugger to the Device Manager, then update the driver, or you can attach the debugger to a device installation application. Attaching a debugger to the application that installs the device allows access to the co-installer itself. For these procedures to work, you must have already developed a working driver installation package for your device that uses a co-installer. Read the article at

   http://support.microsoft.com/?kbid=833909