diff --git a/launch/src/main/scala/xsbt/boot/BootConfiguration.scala b/launch/src/main/scala/xsbt/boot/BootConfiguration.scala
index 5170b61fa..288aadc83 100644
--- a/launch/src/main/scala/xsbt/boot/BootConfiguration.scala
+++ b/launch/src/main/scala/xsbt/boot/BootConfiguration.scala
@@ -91,14 +91,28 @@ private object BootConfiguration
 			None
 	}
 }
+private final class ProxyProperties(
+	val envURL: String,
+	val envUser: String,
+	val envPassword: String,
+	val sysHost: String,
+	val sysPort: String,
+	val sysUser: String,
+	val sysPassword: String
+)
 private object ProxyProperties
 {
-	val HttpProxyEnv = "http_proxy"
-	val HttpProxyUser = "http_proxy_user"
-	val HttpProxyPassword = "http_proxy_pass"
+	val http = apply("http")
+	val https = apply("https")
+	val ftp = apply("ftp")
 
-	val ProxyHost = "http.proxyHost"
-	val ProxyPort = "http.proxyPort"
-	val ProxyUser = "http.proxyUser"
-	val ProxyPassword = "http.proxyPassword"
+	def apply(pre: String) = new ProxyProperties(
+		pre+"_proxy",
+		pre+"_proxy_user",
+		pre+"_proxy_pass",
+		pre+".proxyHost",
+		pre+".proxyPort",
+		pre+".proxyUser",
+		pre+".proxyPassword"
+	)
 }
\ No newline at end of file
diff --git a/launch/src/main/scala/xsbt/boot/CheckProxy.scala b/launch/src/main/scala/xsbt/boot/CheckProxy.scala
index a00c3b06c..a45a90b1e 100644
--- a/launch/src/main/scala/xsbt/boot/CheckProxy.scala
+++ b/launch/src/main/scala/xsbt/boot/CheckProxy.scala
@@ -11,18 +11,25 @@ object CheckProxy
 	def apply()
 	{
 		import ProxyProperties._
-		val httpProxy = System.getenv(HttpProxyEnv)
-		if(isDefined(httpProxy) && !isPropertyDefined(ProxyHost) && !isPropertyDefined(ProxyPort))
+		for( pp <- Seq(http, https, ftp))
+			setFromEnv(pp)
+	}
+
+	private[this] def setFromEnv(conf: ProxyProperties)
+	{
+		import conf._
+		val proxyURL = System.getenv(envURL)
+		if(isDefined(proxyURL) && !isPropertyDefined(sysHost) && !isPropertyDefined(sysPort))
 		{
 			try
 			{
-				val proxy = new URL(httpProxy)
-				setProperty(ProxyHost, proxy.getHost)
+				val proxy = new URL(proxyURL)
+				setProperty(sysHost, proxy.getHost)
 				val port = proxy.getPort
 				if(port >= 0)
-					System.setProperty(ProxyPort, port.toString)
-				copyEnv(HttpProxyUser, ProxyUser)
-				copyEnv(HttpProxyPassword, ProxyPassword)
+					System.setProperty(sysPort, port.toString)
+				copyEnv(envUser, sysUser)
+				copyEnv(envPassword, sysPassword)
 			}
 			catch
 			{
@@ -31,6 +38,7 @@ object CheckProxy
 			}
 		}
 	}
+
 	private def copyEnv(envKey: String, sysKey: String) { setProperty(sysKey, System.getenv(envKey)) }
 	private def setProperty(key: String, value: String) { if(value != null) System.setProperty(key, value) }
 	private def isPropertyDefined(k: String) = isDefined(System.getProperty(k))
diff --git a/src/sphinx/Detailed-Topics/Setup-Notes.rst b/src/sphinx/Detailed-Topics/Setup-Notes.rst
index f2b4320dc..ca7fd3ec0 100644
--- a/src/sphinx/Detailed-Topics/Setup-Notes.rst
+++ b/src/sphinx/Detailed-Topics/Setup-Notes.rst
@@ -52,22 +52,27 @@ following uses the pre-0.11 style of putting the boot directory in
 
     java -Dsbt.boot.directory=project/boot/
 
-HTTP Proxy
-----------
+HTTP/HTTPS/FTP Proxy
+--------------------
 
-On Unix, sbt will pick up any HTTP proxy settings from the standard
-`http_proxy` environment variable. If you are behind a proxy requiring
-authentication, your `sbt` script must also pass flags to set the
-`http.proxyUser` and `http.proxyPassword` properties:
+On Unix, sbt will pick up any HTTP, HTTPS, or FTP proxy settings from the standard
+`http_proxy`, `https_proxy`, and `ftp_proxy` environment variables. If you are behind
+a proxy requiring authentication, your `sbt` script must also pass flags to set the
+`http.proxyUser` and `http.proxyPassword` properties for HTTP,
+`ftp.proxyUser` and `ftp.proxyPassword` properties for FTP,
+or `https.proxyUser` and `https.proxyPassword` properties for HTTPS.
+
+For example,
 
 .. code-block:: console
 
     java -Dhttp.proxyUser=username -Dhttp.proxyPassword=mypassword
 
 On Windows, your script should set properties for proxy host, port, and
-if applicable, username and password:
+if applicable, username and password.  For example, for HTTP:
 
 .. code-block:: console
 
     java -Dhttp.proxyHost=myproxy -Dhttp.proxyPort=8080 -Dhttp.proxyUser=username -Dhttp.proxyPassword=mypassword
 
+Replace `http` with `https` or `ftp` in the above command line to configure HTTPS or FTP.