Free operation system software downloads

AutoBatch It! v2 is a batch image processor made for command line operation and as a System Tray Icon application for timer based operation. AutoBatch It! v2 allows you to :-

- Resize Images by pixels, by percentage or preset multipliers
- Create thumbnail images
- Convert images to JPEG, TIFF, BMP, PNG and GIF
- Save Progressive JPEG
- Change JPEG Quality, Smoothing ratio and Dot Per Inch (DPI)
- Add Prefix and Suffix...

CalculatorX is an enhanced expression calculator. It can evaluate an expression for one time. You can use Arithmetic, Logic, Bitwise and Relation operations in your expression. And many system constants and built-in functions can also be used in the expression. CalculatorX even supports the custom variables, custom functions and note-line. You can use Binary, Octal, Decimal and HEXadecimal numbers in one expression to evaluate as well.

CalculatorX has the unlimited ability to extend itself by using Custo...

Why dose the Perfect Optimizer Registry Cleaner lead the registry cleaner field?

The Perfect Optimizer Registry Cleaner is the solution to your system registry errors. Ranked the top 5 Registry Cleaner in the world!
It enjoys the features of simple operation and power function, 100% safety and satisfaction guaranteed, update 1 or 2 times a month, 9 built-in toolkits compared with others only with 1 or 2, One-Click Operation with all problems off your PC, special design for the junior, mid and senior use...