Troubleshooting Application Compatibility Issues – Tools, Tips, and Tricks

When I need to troubleshoot a compatibility problem, there are a handful of tools that I use that are very helpful. In this post, I’ll talk about some of my favorite tools and how to use them to identify compatibility issues. Most applications do a poor job of reporting unexpected errors. A lot of times,…


If I’m an Administrator, Why Do I Get Access Denied?

UAC logo
UAC logo

User Account Control (UAC) can seem mysterious. After all, if I’m a member of the Administrators group, shouldn’t I have access to everything?  If you’re a developer, you’ll run into a UAC issue sooner or later.  In this post, I’ll cover the basics that every developer should know. Standard User by Default Running applications as…


What is Interactive Services Detection and Why is it Blinking at Me?

Interactive Services Detection
Interactive Services Detection

UPDATE: If you’re a Windows user trying to figure out what’s wrong with your PC, please check out my other post: Troubleshooting Interactive Services Detection. If you are a developer (or want nerdy details), please read on.     Have seen this button flashing on the taskbar? When you click on the button, you get…


Why does a High DPI Setting Make My Application Look Fuzzy and Have Clipped Text?

If you increase your DPI setting in Windows 7 (or Vista), you may notice your application doesn’t look the way you intended. What’s the Big Deal? You may say, “Nobody changes the default DPI, right?” Well, Windows 7 might. Windows 7 may increase the default DPI setting based on the resolution the video card supports. …


Where Should I Store my Data and Configuration Files if I Target Multiple OS Versions?

Over the past few releases of Windows, you may have noticed common folder locations have moved around a bit.  What should you do if you want your code to target multiple OS’s? Perhaps you are updating an application from XP to Windows 7 and wondering where those old directories went. Hopefully, this post will answer…


Q: Why Doesn’t Drag-and-Drop work when my Application is Running Elevated? – A: Mandatory Integrity Control and UIPI

UAC logo
UAC logo

If you run notepad elevated (Right click | Run as Administrator), and you try and drag-and-drop a file from Windows Explorer, nothing happens. It looks like it is going to work because the pointer icon changes but the file doesn’t open. Weird, huh?   What’s Going On?   In the traditional NT Security model (prior…