KGB Archiver is not your regular file compressor. It makes all the difference in the world, size-wise, because it can create the tinniest archives. This is due to the fact that its compression rate is amazing, almost unique in its software category.
This small and seemingly plain software is extremely powerful, and it could easily surpass other products of its kind (when it comes to compression size, not speed).
Archives can be made in either KGB or ZIP format, and compression level can be set from minimal to maximum (with a lot of options in between). Plus, you can secure them by assigning a password, no matter which compression level you choose.
For example, we compressed a file of 1.2MB at maximum level. The process took 30 seconds, and the result weighed 366,5KB. Large file take a lot more than that, obviously. So, yes, KBG Archiver is powerful, but it also takes long time for maximum compression level.
During compression, KGB Archiver displays the progress, together with the current size versus the projected size and the remaining time. This information is also available in a little window that pops up if you move the mouse over the application icon in the system tray.
KGB Archiver also places shortcuts in the Explorer context menu, but you can make that disappear from the Options window of the application.
In conclusion, KGB Archiver is willing to cut down your archives in size, but at the price of a long waiting time for very large files. Considering that it can drastically make a difference, the costs are not that high.