in-package etc.

[yonetch4h@gmail.com]

I have been using emacsen and recently started using GNU emacs.
I encountered some problems.

My Environment is:
OS: Windows-XP SP2
(emacs-version)"GNU Emacs 22.3.1 (i386-mingw-nt5.1.2600) of 2008-09-07
on SOFT-MJASON"
User-Agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/
1.14.9 (Goj?) APEL/10.7 Emacs/22.3 (i386-mingw-nt5.1.2600) MULE/5.0
(SAKAKI)

1) "in-package"
When I start emacs, it says "Symbol's function definition is void: in-
package".
It also say that and stop compiling while installing elisp packages
like SEMI, FLIM, etc.
So I have to view Makefiles and comile manualy.
How I can avoid it?

2) "Cannot read windows-31j e-mail"
I cannot read e-mails with charset=Windows-31J.
I tried to change "charset=Windows-31J" to "charset=cp932" and I could
read it.
How I can read it without rewriting charset?

3) "pgg-encrypt-region"
How I can use pgg-encrypt-region non-interactively ?
I can use pgg-encrypt-region interactively, but I get error when I
evaluate(C-x C-e)
following expression:
(pgg-encrypt-region 1 (point-max))
Nothing happens when I evaluate(C-x C-e) following expression:
(pgg-encrypt-region 1 (point-max) '("Hoge"))

4) "Charactor code changed automatically when saving"
When I save buffer, Charactor code is changed automatically to Emacs-
Mule.
I referenced this URL
http://d.hatena.ne.jp/a666666/20080905/1220581860 (Japanese)
and inserted my .emacs following code:
(setq auto-coding-functions nil)
Now Charactor code is not changed.
Is that correct?

Thank you.