I support a .NET IE Toolbar, for a population of users that have a variety of OS and IE versions, in a variety of remote locations. For a small number of these users, the toolbar installs properly, but never actually loads when they try to enable it in IE. We haven't been able to replicate this situation on our test pcs.
Most of our support is over the phone or via WebEx, so our access to the customer's pc is somewhat limited. I'm looking for a way to gather information like security settings, gpo policies, what assemblies are failing to load, and other low-level stuff that I'd normally look at with Visual Studio debugger and fuselogvw and other developer tools. However with my customer's pcs, I don't have the luxury of these tools, so I need to be a bit more resourceful.
So, what tools are either available on most pcs, or a simple free download that will let me get some detailed debugging information?