VimShell 上で termtter を起動させるとエラー

vimshell% termtter
!!!指定されたパスが見つかりません。!!!
!!!指定されたパスが見つかりません。!!!
!!!指定されたパスが見つかりません。!!!

   <(@)//_  .  .       Termtter 1.9.0 
      \\            http://termtter.org/ 

// ここにツイートは出力されている。
(12:43:11) [$au] osyo_manga: hogehoge test Termtter
!!!C:/Ruby/lib/ruby/site_ruby/1.8/rbreadline.rb:1796:in ``': No such file or directory - infocmp -C (Errno::ENOENT)!!!
!!!	from C:/Ruby/lib/ruby/site_ruby/1.8/rbreadline.rb:1796:in `get_term_capabilities'!!!
!!!	from C:/Ruby/lib/ruby/site_ruby/1.8/rbreadline.rb:2005:in `_rl_init_terminal_io'!!!
!!!	from C:/Ruby/lib/ruby/site_ruby/1.8/rbreadline.rb:2491:in `readline_initialize_everything'!!!
!!!	from C:/Ruby/lib/ruby/site_ruby/1.8/rbreadline.rb:3726:in `rl_initialize'!!!
!!!	from C:/Ruby/lib/ruby/site_ruby/1.8/rbreadline.rb:4720:in `readline'!!!
!!!	from C:/Ruby/lib/ruby/site_ruby/1.8/readline.rb:40:in `old_readline'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/termtter/system_extensions/windows.rb:11:in `readline'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/plugins/defaults/command_line.rb:59:in `start_input_thread'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/plugins/defaults/command_line.rb:58:in `initialize'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/plugins/defaults/command_line.rb:58:in `new'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/plugins/defaults/command_line.rb:58:in `start_input_thread'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/plugins/defaults/command_line.rb:19:in `start'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/plugins/defaults/command_line.rb:10:in `start'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/plugins/defaults/command_line.rb:136!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/termtter/hook.rb:29:in `call'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/termtter/hook.rb:29:in `call'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/termtter/hookable.rb:59:in `call_hooks'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/termtter/hookable.rb:56:in `each'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/termtter/hookable.rb:56:in `call_hooks'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/../lib/termtter/client.rb:342:in `run'!!!
!!!	from C:/Ruby/lib/ruby/gems/1.8/gems/termtter-1.9.0/bin/termtter:15!!!
!!!	from C:/Ruby/bin/termtter:19:in `load'!!!
!!!	from C:/Ruby/bin/termtter:19!!!

!!!vimshell: exit 1 "termtter"!!!
vimshell% 

VimShell で termtter を呼び出すとこんな感じです。
※関係のないツイートは削除してあります。

[追記]
とりあえず、 ruby を入れ直したら動くようになりました。
あと iexe から呼び出さないと駄目みたいです。
兎も角、@ShougoMatsu さんありがとうございましたー。