StartEd - 3.80 

StartEd allows you to take a peek at what's currently going on during the boot operations, and places the power to Edit, Delete and Add to the existing entries at your fingertips. It lets you selectively test the changes you have made. StartEd also allows you to disable and enable several of the programs which load up with check-boxes.

TaskInfo98 - 2.0 Beta 2 

TaskInfo98 gives you a visual monitor real-time of all running processes on your computer. This information includes CPU usage, memory usage, scheduling rate and many others. It also allows you to force termination of a program that is no longer responding. It also tracks system-wide information, such as memory left, cache usage, data transfer rates, and more.

WinTune 98 - 1.0.39 

WinTune is a freeware diagnostic testing and benchmark program from Windows Magazine. Measure your CPU, memory, video, and disk speed, and receive suggestions for improving your system performance. Some are useful, like reducing DOS buffers, others are not, like upgrading your 486.