1)   Performance Monitor 3.8.5
Monitor your CPU, Memory, Disk and Network utilization with this very useful program

 2)   HSLAB Sys Monitor Lite 2.0.0
Advanced real-time monitoring and statistics utility for Windows. HSLAB Sys Monitor uses some advanced technologies for logging and mesuring system components. The sensors permanently monitor behind parameters of the system.

 3)   HSLAB Free Sys Monitor 2.0.0
Advanced real-time monitoring and statistics utility for Windows. HSLAB Sys Monitor uses some advanced technologies for logging and mesuring system components. The sensors permanently monitor behind parameters of the system.

 4)   HSLAB Sys Monitor Free 2.0.0
Advanced real-time monitoring and statistics utility for Windows. HSLAB Sys Monitor uses some advanced technologies for logging and mesuring system components. The sensors permanently monitor behind parameters of the system.

 5)   Memory Monitor 1.5
Shows usage of physical memory with some additional features Memory Monitor is utility that monitors physical memory in Windows systems (98/2K/XP). With this little tool you can track usage of memory in your system and easily free it if needed.