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

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

@@ -0,0 +1,37 @@
+" plain TeX filetype plugin
+" Language:     plain TeX (ft=plaintex)
+" Maintainer:   Benji Fisher, Ph.D. <benji@member.AMS.org>
+" Version:	1.1
+" Last Change:	Wed 19 Apr 2006
+
+" Only do this when not done yet for this buffer.
+if exists("b:did_ftplugin")
+  finish
+endif
+
+" Start with initex.  This will also define b:did_ftplugin and b:undo_ftplugin .
+source $VIMRUNTIME/ftplugin/initex.vim
+
+" Avoid problems if running in 'compatible' mode.
+let s:save_cpo = &cpo
+set cpo&vim
+
+let b:undo_ftplugin .= "| unlet! b:match_ignorecase b:match_skip b:match_words"
+
+" Allow "[d" to be used to find a macro definition:
+let &l:define .= '\|\\new\(count\|dimen\|skip\|muskip\|box\|toks\|read\|write'
+	\ .	'\|fam\|insert\)'
+
+" The following lines enable the macros/matchit.vim plugin for
+" extended matching with the % key.
+" There is no default meaning for \(...\) etc., but many users define one.
+if exists("loaded_matchit")
+  let b:match_ignorecase = 0
+    \ | let b:match_skip = 'r:\\\@<!\%(\\\\\)*%'
+    \ | let b:match_words = '(:),\[:],{:},\\(:\\),\\\[:\\],\\{:\\}'
+endif " exists("loaded_matchit")
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim:sts=2:sw=2: