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I ask because it's being discontinued very soon and I'd like to make sure I've downloaded all versions. (I only have 32-bit Windows installed at the moment and the website might serve a different binary depending on your operating system)

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No, they did not create a 64 bit version. Later versions were compatible with 64 bit systems. There was no need or benefit in creating a 64 bit version, as its internal database was small and quick.

Do you really want a desktop search application gobbling up 4GB or more of memory if it was available to it?

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A 64-bit executable doesn't necessarily use a lot more memory. The main thing is that it's more future-proof, eg. if Microsoft drops support for 32-bit. – Hugh Allen Sep 11 '11 at 7:46
Actually, it does eat up more memory. Those 32bit data structures? Ya, they doubled in size. – surfasb Sep 11 '11 at 8:20
@surfasb: yes, c-style pointers are doubled in size, but other data types aren't necessarily. And RAM is cheap and if you're running 64-bit you probably have plenty of it. – Hugh Allen Sep 11 '11 at 9:56
Sigh. How do you think the memory manager references those other data structures. Oh, with the other 64 bit pointer. . . – surfasb Sep 11 '11 at 13:04
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