HeavyLoad is a benchmark tool that stresses all resources of a PC (like CPU, GPU, RAM, hard disk, operating system, etc).
License: Freeware
OS Support: WinXP, Win2003, Win Vista

PDS grant professional MS Outlook Repair Tool to fix corrupted outlook files.
License: Shareware
OS Support: WinXP, Win98

ASTRA32 is a powerful tool providing diagnostics and complete information about your computer system It scans the actual hardware, not the Windows Registry.
License: Demo
OS Support: WinXP, WinNT 4.x, WinME, Win2003, Win2000, Win Vista, Win98, Win95

Fresh Diagnose is a utility designed to analyze and benchmark your computer system It can analyze and benchmark many kinds of hardware, such as CPU performance, hard disk performance, video system information, mainboard information, and more.
License: Freeware
OS Support: WinXP, Win Vista, Win98

Test your PC's performance, find out its real speed and compare your results with users from around the world With BenchTown you can benchmark all aspects of computer performance and get an independent rating of your system.
License: Freeware
OS Support: WinXP, Win2003, Win Vista

SHSi - A small program mainly for Windows XP users, which is capable of displaying the vital information of the three main components of computer: CPU, memory and the display's video cardConvenient tool to keep tabs on your PC.
License: Freeware
OS Support: WinXP, WinNT 4.x, WinNT 3.x, WinME, Win2003, Win2000, Win Vista, Win98, Win95, Win 3.1x