gistfile1.txt

class application_aspnet_regiis {
  include 'param::powershell'

  # http://stackoverflow.com/questions/9903543/how-to-check-whether-asp-net-4-0-registered-on-iis-7-5
  $onlyif_command_regiis = 'if((c:\Windows\System32\inetsrv\appcmd.exe list config -section:system.webServer/isapiFilters) | where-object {$_.Contains(\"Framework\v4.0.30319\")}) { exit 1 } else { exit 0 }'
  $onlyif_command_regiis_64 = 'if((c:\Windows\System32\inetsrv\appcmd.exe list config -section:system.webServer/isapiFilters) | where-object {$_.Contains(\"Framework64\v4.0.30319\")}) { exit 1 } else { exit 0 }'

  exec { 'aspnet_regiis':
    path      => "${param::powershell::path};C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\;${::path}",
    command   => "${param::powershell::command} -Command \"aspnet_regiis.exe -i\"",
    onlyif    => "${param::powershell::command} -Command \"${onlyif_command_regiis}\"",
    logoutput => true,
  }

  exec { 'aspnet_regiis_64':
    path      => "${param::powershell::path};C:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319\\;${::path}",
    command   => "${param::powershell::command} -Command \"aspnet_regiis.exe -i\"",
    onlyif    => "${param::powershell::command} -Command \"${onlyif_command_regiis_64}\"",
    logoutput => true,
  }
}