Debugging Applications for MicrosoftВ® .NET and Microsoft WindowsВ® (Pro-Developer)

Whole Tomato's Visual Assist (www.wholetomato.com)

This is an excellent add-in to Microsoft Visual Studio .NET that extends the editor and puts in real IntelliSense and other advanced editing tools.

Source Dynamic's Source Insight (www.sourceinsight.com)

If you need to see how large C++, C#, or Java programs fit together, this is the source browsing tool of choice.

Compuware DevPartner (www.compuware.com/products/numega)

This is the suite that holds BoundsChecker (error detection), TrueTime (profiler), TrueCoverage (code coverage), CodeReview (static analysis), and Distributed Analyzer (cross-machine analysis). These tools all work for .NET as well as native code.

Bullseye Testing Technology's C-Cover (www.bullseye.com)

This is a fantastic native C++ code coverage tool.

JPSoft's 4NT (www.jpsoft.com)

This is the ultimate command shell for Windows machines. It's even got a debugger for batch files! On a fresh operating installation, it's the first program I put on the machine.

Jay Freeman's Anakrino (www.saurik.com/net/exemplar)

This is the easy way to learn about .NET: decompile it!

Luts Roeder's Reflector (www.aisto.com/roeder/DotNet)

Use this for a better ILDASM.

WiseOwl's Demeanor for .NET (www.wiseowl.com)

This is Brent Rector's excellent code obfuscator.

MindReef's SOAPscope (www.mindreef.com)

If you want to see what's happening with your Web services under the hood, you can't get any better than SOAPscope.

VMWare (www.vmware.com)

Instead of having 300 machines in your test lab, buy a few big servers and run VMWare. I've seen several organizations save a ton of money by utilizing VMWare to cut down on hardware costs and yet increase their operating system testing coverage considerably.