Statseeker is a powerful network performance monitoring solution for businesses
Using just a single server or virtual machine, Statseeker can be up and running within minutes, and discovering your entire network in less than an hour, without any significant effect on your bandwidth availability.
'Sleepy' is a non-invasive profiler for the Windows platform that allows statistical profiling of applications through sampling the instruction pointer register. Sleepy presents results in a GUI built with wxWindows.