Launch putty for a vagrant machine, including converting key with winscp

vagrant_putty.bat

@echo off
echo Launching Putty SSH connection to vagrant in %cd%
set VAGRANT_DIR=%cd%\.vagrant\machines\default\virtualbox
IF NOT EXIST %VAGRANT_DIR% goto novagrant

echo Locating vagrant forwarded SSH port
vagrant port --guest 22 > "%VAGRANT_DIR%\ssh_port"
if %errorlevel% neq 0 goto error

set /p SSH_PORT=<"%VAGRANT_DIR%\ssh_port"
if %errorlevel% neq 0 goto error

echo Forwarded port is %SSH_PORT%

echo Converting Vagrant private key to putty key
"C:\Program Files (x86)\WinSCP\WinSCP.com" /keygen "%VAGRANT_DIR%\private_key" /output="%VAGRANT_DIR%\private_key.ppk"
if %errorlevel% neq 0 goto error

echo Launching putty
start "" "C:\Program Files (x86)\PuTTY\putty.exe" -ssh vagrant@127.0.0.1 %SSH_PORT% -i "%VAGRANT_DIR%\private_key.ppk"
if %errorlevel% neq 0 goto error

exit /b 0

:novagrant
echo No vagrant directory in %VAGRANT_DIR% - have you got a running machine here?
exit /b 9

:error
echo Command failed with error %errorlevel%
exit /b %errorlevel%