$packageName = 'TimberWinR-${version}' # arbitrary name for the package, used in messages
$installerType = 'msi' #only one of these: exe, msi, msu
$url = 'http://www.ericfontana.com/TimberWinR/TimberWinR-${version}.0.msi' # download url
$silentArgs = '${PROJECTGUID} /quiet' 
$validExitCodes = @(0) #please insert other valid exit codes here, exit codes for ms http://msdn.microsoft.com/en-us/library/aa368542(VS.85).aspx
UnInstall-ChocolateyPackage "$packageName" "$installerType" "$silentArgs" "$url" -validExitCodes $validExitCodes