Time to load OpenOffice from point of click to actual start of program. It loads all it's necessary libraries at that time, unlike MS Office that has DLL's loaded at the actual system bootup for Windows (whatever version); that's how MS Office "appears" to load so fast - it's because most of it's engine is already in system memory prior to even launching the application. That's how Microsoft makes use of "slight of hand" to make things appear faster - same with IE.
OOo uses the same "slight of hand" when installed on a Windows machine.
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