I just installed ruby with the Heroku Toolbelt, probem is that when I do bundle install it gives me this error:
bundle install
sh.exe\": /c/Program Files (x86)/rub
I had these issues, and for me the only problem was the spaces in the file paths. Simply adding 's around the path fixed the problem for me:
'C:\Program Files (x86)\git\bin';'C:\Program Files (x86)\Heroku\ruby-1.9.2\bin'
That's it!