After way too long, I'm finally getting around to upgrading from Emacs 21.3.1 to Emacs 23.4.1. I downloaded the precompiled Windows version from http://ftp.gnu.org/pub/gnu/emacs/windows/emacs-23.4-bin-i386.zip, unpacked it, and created a Windows shortcut to bin/runemacs.exe. The OS is Windows XP SP3.

When I start up the new version, it finds that I've got an initialization file at C:/.emacs, and it looks like some of the Lisp code that works under 21.3.1 no longer works under 23.4.1. For the moment I want to keep both versions installed. Is there some way to have the different versions initialize themselves from different .emacs files? Alternatively, is there some Lisp code I can insert to test which version of Emacs is running, so I can conditionalize the code to do the right thing for each version?

       Mark Rosenthal
       m...@arlsoft.com <mailto:m...@arlsoft.com>


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