The App Compat Guy

One of the many reasons why I love my job so much is that I am so consistently faced with problems that are difficult to sort out. Well, not that I like the sensation of being stumped, but I sure do like the sensation of figuring out what was happening...

The story is all too familiar. Developing software as a standard user on your computer can be challenging until you know all of the tricks (see Aaron Margosis' Blog for many of these tricks). Consequently, all too often developers end up running as local...

When I speak with customers about compatibility testing in preparation for an upgrade to Windows Vista, one of the tools I always introduce is Application Verifier. Application Verifier is a great tool for developers. It runs a number of runtime checks...

Today we were having a discussion around Internet Explorer in Protected Mode, and the question came up regarding how to launch an arbitrary process with a low integrity level. This is fairly straightforward to do in code. First, you duplicate the handle...