STS - Springsource Tool Suite 2.9.1 behind proxy (SOLVED)

Add to sts.ini:

-Dorg.eclipse.ecf.provider.filetransfer.excludeContributors=org.eclipse.ecf.provider.filetransfer.httpclient
-Dhttp.proxyPort=3128
-Dhttp.proxyHost=proxy
-Dhttp.proxyUser=domain\domain-username
-Dhttp.proxyPassword=password
-Dhttp.nonProxyHosts=localhost|127.0.0.1