The hacks in this chapter focus on add-ins that enhance the overall functionality of Visual Studio. Previous chapters covered a lot of add-ins that help in a particular area of Visual Studio, like navigating the IDE or writing faster code, but in this chapter, the add-ins are more general enhancements to the functionality of Visual Studio.This chapter will first look at how to best manage add-ins, including how to hack them to install for different versions of Visual Studio; how to manage installed add-ins; and how to repair add-ins that are not working properly. You'll also learn about add-ins that can spellcheck your code, test regular expressions in Visual Studio, generate better Web Services code, unit-test applications, and more.