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Old 01-02-2010, 11:37 PM   #11
kovidgoyal
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The large amounts of time are because of the design of MSI installers, they sit and compare each unversioned file in the old and new installs, and since calibre has a lot of unversioned files (python scripts and recipes), it takes a long time. Basically MSI installers, like most Microsoft tech, are really badly designed.
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