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Abstract

A method of dynamically creating a two-stage self-extracting archives. During the archive creation process the executable code segments for inverse algorithms are selectively added to the self-extracting archive, but only for those algorithms applied during archive creation. This results in a considerably smaller size of the self-extracting archive. Additional space savings can be achieved by reprocessing the original data to eliminate the use of any algorithm applied in the archive creation which resulted in less savings than the additional size of the corresponding inverse algorithm. The selected inverse algorithms are themselves compressed. A compact inverse algorithm is provided as ready-to-execute code, which restores the selected inverse algorithms to an executable state, and then causes them to be executed on the compressed file data.

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First Claim