made the pack completely portable and wrote relevent bat files to go with it

gitportable/usr/share/vim/vim91/ftplugin/mail.vim

@@ -0,0 +1,47 @@
+" Vim filetype plugin file
+" Language:	Mail
+" Maintainer:	The Vim Project <https://github.com/vim/vim>
+" Last Change:	2023 Aug 10
+" Former Maintainer:	Bram Moolenaar <Bram@vim.org>
+
+" Only do this when not done yet for this buffer
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin = 1
+
+let b:undo_ftplugin = "setl modeline< tw< fo< comments<"
+
+" Don't use modelines in e-mail messages, avoid trojan horses and nasty
+" "jokes" (e.g., setting 'textwidth' to 5).
+setlocal nomodeline
+
+" many people recommend keeping e-mail messages 72 chars wide
+if &tw == 0
+  setlocal tw=72
+endif
+
+" Set 'formatoptions' to break text lines and keep the comment leader ">".
+setlocal fo+=tcql
+
+" Add n:> to 'comments, in case it was removed elsewhere
+setlocal comments+=n:>
+
+" .eml files are universally formatted with DOS line-endings, per RFC5322.
+" If the file was not DOS the it will be marked as changed, which is probably
+" a good thing.
+if expand('%:e') ==? 'eml'
+  let b:undo_ftplugin ..= " fileformat=" .. &fileformat
+  setlocal fileformat=dos
+endif
+
+" Add mappings, unless the user doesn't want this.
+if !exists("no_plugin_maps") && !exists("no_mail_maps")
+  " Quote text by inserting "> "
+  if !hasmapto('<Plug>MailQuote')
+    vmap <buffer> <LocalLeader>q <Plug>MailQuote
+    nmap <buffer> <LocalLeader>q <Plug>MailQuote
+  endif
+  vnoremap <buffer> <Plug>MailQuote :s/^/> /<CR>:noh<CR>``
+  nnoremap <buffer> <Plug>MailQuote :.,$s/^/> /<CR>:noh<CR>``
+endif