NirSoft Utilities

NirSoft utilities have some unique advantages over many other freeware and commercial products:

• Most of the utilities were developed in C++, which make them fast, small and effective.
• The utilities are portable and mostly don't require any installation.
• All  utilities (except of a few very old tools) don't write anything to the Registry or to local profile folder.
• Most of the utilities can be used from command-line, without displaying any user interface.

http://www.nirsoft.net/