Tool and Usage
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Why this tool?
UPX is the abbreviation for "Ultimate Packer for eXecutables". It is considered to be a tool with a good compression ratio and fast decompression. It can be used to compress executables, making them smaller, while still having a low overhead of memory due to in-place decompression.
UPX is free and open source software (GPv2+). It has special exceptions for commercial programs (see UPX License Agreement).
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