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

gitportable/usr/share/vim/vim91/keymap/polish-slash.vim

@@ -0,0 +1,27 @@
+" Polish letters under VIM >= 6
+" Maintainer:   HS6_06 <hs6_06@o2.pl>
+" Last changed: 2005 Jan 12
+" Current version: 1.0.2
+" History:
+"  2005.01.12 1.0.2 keymap_name shortened, added Current version, History
+"  2005.01.10 1.0.1 un*x line ends for all files
+"  2005.01.09 1.0.0 Initial release
+
+let encoding = &enc
+if encoding == 'latin1'
+    if has("unix")
+	let encoding = 'iso-8859-2'
+    else
+	let encoding = 'cp1250'
+    endif
+endif
+
+if encoding == 'utf-8'
+	source <sfile>:p:h/polish-slash_utf-8.vim
+elseif encoding == 'cp1250'
+	source <sfile>:p:h/polish-slash_cp1250.vim
+elseif encoding == 'iso-8859-2'
+	source <sfile>:p:h/polish-slash_iso-8859-2.vim
+else
+	source <sfile>:p:h/polish-slash_cp852.vim
+endif