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

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

@@ -0,0 +1,49 @@
+" Vim filetype plugin file
+" Language:            C#
+" Maintainer:          Nick Jensen <nickspoon@gmail.com>
+" Former Maintainer:   Johannes Zellner <johannes@zellner.org>
+" Last Change:         2022-11-16
+"                      2024 Jan 14 by Vim Project (browsefilter)
+" License:             Vim (see :h license)
+" Repository:          https://github.com/nickspoons/vim-cs
+
+if exists('b:did_ftplugin')
+  finish
+endif
+let b:did_ftplugin = 1
+
+let s:save_cpo = &cpoptions
+set cpoptions&vim
+
+" Set 'formatoptions' to break comment lines but not other lines,
+" and insert the comment leader when hitting <CR> or using "o".
+setlocal formatoptions-=t formatoptions+=croql
+
+" Set 'comments' to format dashed lists in comments.
+setlocal comments=sO:*\ -,mO:*\ \ ,exO:*/,s1:/*,mb:*,ex:*/,:///,://
+
+let b:undo_ftplugin = 'setl com< fo<'
+
+if exists('loaded_matchit') && !exists('b:match_words')
+  " #if/#endif support included by default
+  let b:match_ignorecase = 0
+  let b:match_words = '\%(^\s*\)\@<=#\s*region\>:\%(^\s*\)\@<=#\s*endregion\>,'
+  let b:undo_ftplugin .= ' | unlet! b:match_ignorecase b:match_words'
+endif
+
+if (has('gui_win32') || has('gui_gtk')) && !exists('b:browsefilter')
+  let b:browsefilter = "C# Source Files (*.cs, *.csx)\t*.cs;*.csx\n" .
+        \              "C# Project Files (*.csproj)\t*.csproj\n" .
+        \              "Visual Studio Solution Files (*.sln)\t*.sln\n"
+  if has("win32")
+    let b:browsefilter ..= "All Files (*.*)\t*\n"
+  else
+    let b:browsefilter ..= "All Files (*)\t*\n"
+  endif
+  let b:undo_ftplugin .= ' | unlet! b:browsefilter'
+endif
+
+let &cpoptions = s:save_cpo
+unlet s:save_cpo
+
+" vim:et:sw=2:sts=2