I dont understand what you want to do. You have a .reg file, that needs to be applied, without redirection, to the registry? Then use the 64bit regedit. If your .reg file is getting the redirection, then you are calling the 32 bit regedit. You have to use an absolute path with "Sysnative" folder (google it) in it to reach the 64 bit regedit from a 32 bit perl.
in reply to Re^2: access 64bit registry from 32 bit Perl
in thread access 64bit registry from 32 bit Perl