Changing file associations

(Windows questions) SPSS/PASW 'associates' itself with several file
extensions (at least .sps, .sav, .spo, .spv); that is, when you open
such a file, it's sent to SPSS.

If you have several SPSS versions, these files are associated with
one of them -- I think, usually the last one you installed.

What's the easiest way to change which version gets the files?

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To manage your subscription to SPSSX-L, send a message to
LISTSERV@... (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
SIGNOFF SPSSX-L
For a list of commands to manage subscriptions, send the command
INFO REFCARD