Only adds the helper on windows (fixes crashes on *nix)
Only adds the helper on windows (fixes crashes on *nix)

bheuvel/powershell,burnzy/powershell,dpiessens/powershell,ClogenyTechnologies/powershell,opscode-cookbooks/powershell,chef-cookbooks/powershell,criteo-forks/powershell,trevorghess/powershell