SVN server 1.6.7裝唔到

如題。

我o係屋企Windows XP Sercive Pack 3 裏面裝[TortoiseSVN-1.6.7.18415-x64-svn-1.6.9.msi] 用黎做SVN checkout及SVN commit等等的課堂習作, 但係佢出一個話 [This installation package is not supported by this processor type. Contact your product vendor.]。

想知點解屋企裝唔到, 只係學校先行到個software。