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

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

@@ -0,0 +1,32 @@
+" Vim filetype plugin file
+" Language:	Microsoft Macro Assembler (80x86)
+" Maintainer:	Wu Yongwei <wuyongwei@gmail.com>
+" Last Change:	2022-04-24 21:24:52 +0800
+
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin = 1
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+let b:undo_ftplugin = "setl iskeyword<"
+
+setlocal iskeyword=@,48-57,_,36,60,62,63,@-@
+
+" Matchit support
+if !exists('b:match_words')
+  let b:match_words = '^\s*\.IF\>:^\s*\.ELSEIF\>:^\s*\.ELSE\>:^\s*\.ENDIF\>,'
+        \ .. '^\s*\.REPEAT\>:^\s*\.UNTIL\(CXZ\)\?\>,'
+        \ .. '^\s*\.WHILE\>:^\s*\.ENDW\>,'
+        \ .. '^\s*IF\(1\|2\|E\|DEF\|NDEF\|B\|NB\|IDNI\?\|DIFI\?\)\?\>:^\s*ELSEIF\(1\|2\|E\|DEF\|NDEF\|B\|NB\|IDNI\?\|DIFI\?\)\?\>:^\s*ELSE\>:^\s*ENDIF\>,'
+        \ .. '\(\<MACRO\>\|^\s*%\?\s*FORC\?\>\|^\s*REPEAT\>\|^\s*WHILE\):^\s*ENDM\>,'
+        \ .. '\<PROC\>:\<ENDP\>,'
+        \ .. '\<SEGMENT\>:\<ENDS\>'
+  let b:match_ignorecase = 1
+  let b:undo_ftplugin ..= " | unlet! b:match_ignorecase b:match_words"
+endif
+
+let &cpo = s:cpo_save
+unlet s:cpo_save