Archive: about compressor


about compressor
I find that makcab.exe of ms got bigger cab file if the exe file be compressed has already been compressed by upx than the same uncompressed exe file.
but nsis lzma don't.
by the way, nsis bzip2 method always got bigger exe file than zlib when I compress a exe file.
can anybody tell me why?


The compression ratio depends on the type of data. Usually lzma gives the best ratio and bzip2 is second best, but in some cases it's different.

Combining multiple compression methods does not usually give good results.