Updated patch; mainly changes in emacsclient.c:

 - Now --server-file=xxx (or EMACS_SERVER_FILE=xxx) tries to open:
   - "xxx" (as an absolute or relative path)
   - "%HOME%/.emacs.d/server/xxx"
   - "%APPDATA%/.emacs.d/server/xxx" (on Windows)
 - With no --server-file, it tries to open a local socket.
  - If no --server-file and no local sockets, acts like
"--server-file=server" (which is the same default that server.el
uses).

Some more unresolved questions:

  - Ideas about making server.el bring the frame to the front? Also,
making it compatible with pop-up-frames = t (requested by Drew).

  - In GNU/Linux, is the above search sequence the right one, or
should it use getpwnam (...)->pw_dir to locate the user home
directory?

(Note: I'm beating this into shape with the idea of installing it in
the next few days; I sure hope the pretest is not a problem...)

                     /L/e/k/t/u