diff --git a/autoload/vundle.vim b/autoload/vundle.vim
index d3b5d77..7ca0724 100644
--- a/autoload/vundle.vim
+++ b/autoload/vundle.vim
@@ -8,40 +8,39 @@ let g:vundle_loaded = 1
 
 au BufRead,BufNewFile {bundlerc} set ft=vim
 
-com! -nargs=+ Bundle call vundle#new_bundle(<args>)
+com! -nargs=+ Bundle call vundle#add_bundle(<args>)
 com! -nargs=0 BundleInstall call vundle#install_bundles()
 com! -nargs=0 BundleDocs call vundle#helptagify_bundles()
 
 let g:bundle_dir = expand('~/.vim/bundle/')
 
-func! vundle#add_bundle(uri, opts)
+func! vundle#rc()
+  let g:bundles = []
+endf
+
+func! vundle#add_bundle(...)
+  let [uri; rest] = a:000 | let opts = {}
+  if len(rest) == 1 | let opts = rest[0] | endif
+  let bundle = vundle#new_bundle(uri, opts)
+  call vundle#require_bundle(bundle)
+endf
+
+func! vundle#new_bundle(uri, opts)
   let bundle = a:opts 
   let bundle.uri = a:uri
-  let bundle.name = split(a:uri,'\/')[-1] " potentially break on Windows
+  let bundle.name = split(a:uri,'\/')[-1]
   let bundle.path = expand(g:bundle_dir.''.bundle.name)
   let bundle.rtpath = has_key(bundle, 'rtp') ? join([bundle.path, bundle.rtp], '/') : bundle.path
   call add(g:bundles, bundle)
   return bundle
 endf
 
-func! vundle#new_bundle(...)
-  let [uri; rest] = a:000 | let opts = {}
-  if len(rest) == 1 | let opts = rest[0] | endif
-  let bundle = vundle#add_bundle(uri, opts)
-  call vundle#require_bundle(bundle)
-endf
-
-func! vundle#rc()
-  let &rtp = join(filter(split(&rtp, ','),'v:val !~# g:bundle_dir'), ',')
-  let g:bundles = []
-endf
-
 func! vundle#require_bundle(bundle)
-  let rtp = filter(split(&rtp, ','),'v:val !~# a:bundle.path')
-  let after = [] | let before = []
-  let path = s:RuntimePath(a:bundle)
-  let before += path[0] | let after += path[1]
-  let &rtp = join(before + rtp + after, ',')
+  let dir = a:bundle.rtpath
+  exec 'set rtp^='.dir
+  let after = expand(dir.'/after') | if isdirectory(after) 
+    exec 'set rtp+='.after 
+  endif
 endf
 
 func! vundle#install_bundles()
@@ -69,10 +68,3 @@ func! vundle#helptagify_bundles()
     endif
   endfor
 endf
-
-func! s:RuntimePath(bundle) 
-  let before = [a:bundle.rtpath] | let after  = []
-  let after_dir = expand(a:bundle.rtpath.'/'.'after')
-  if isdirectory(after_dir) | let after = [after_dir] | endif
-  return [before, after]
-endf