At the center of DriverStudio 3.2 is SoftIce 4.3.2, arguably the most famous kernel-mode debugger ever created. Unlike modern debuggers that often require a two-computer setup (host and target), SoftIce was a "system-wide" debugger. It lived underneath the operating system, allowing developers to "pop" into the debugger at any moment by pressing a hotkey (usually Ctrl+D).
DriverWorks: A C++ class library that abstracted the complexities of the Windows DDK (Driver Development Kit). It allowed developers to build robust drivers using object-oriented principles, significantly reducing boilerplate code.
: It could set breakpoints across multiple parallel applications and catch system crashes (Blue Screens of Death) as they happened. Interactive Debugging Compuware DriverStudio 3.2 incl. SoftIce 4.3.2
It was designed to be virtually invisible to the OS, making it a favorite tool for reverse engineers and the software cracking community.