diff --git a/README.md b/README.md
index 3593988..0b32402 100644
--- a/README.md
+++ b/README.md
@@ -95,7 +95,8 @@ ADB Channel
 
 This package also contains a separate tool called adb-channel, which is a
 convenience wrapper to connect a networking socket on the Android device to
-file descriptors on the PC side.
+file descriptors on the PC side. It can even launch and shut down the given
+application automatically!
 
 It is best used as a `ProxyCommand` for SSH (intall
 [SSHelper](https://play.google.com/store/apps/details?id=com.arachnoid.sshelper)
@@ -104,7 +105,7 @@ first) using a configuration like:
 ```
 Host sshhelper
 Port 2222
-ProxyCommand adb-channel tcp:%d
+ProxyCommand adb-channel tcp:%d com.arachnoid.sshelper/.SSHelperActivity 1
 ```
 
 After adding this to `~/.ssh/config`, run `ssh-copy-id sshhelper`.
diff --git a/adb-channel b/adb-channel
index ce906d4..28f0a3e 100755
--- a/adb-channel
+++ b/adb-channel
@@ -4,11 +4,18 @@ set -e
 
 t=`mktemp -d -t adb-channel.XXXXXX`
 
+remote=${1}
+activity=${2}
+delat=${3}
+
 atexit() {
+  [ -z "${activity}" ] || adb shell am force-stop ${activity%%/*}
   adb forward --remove localfilesystem:"${t}/sock"
   rm -rf "${t}"
 }
 trap atexit EXIT
 
+[ -z "${activity}" ] || adb shell am start -W ${activity}
+[ -z "${delay}" ] || sleep "${delay}"
 adb forward localfilesystem:"${t}/sock" "${1}"
 socat stdio unix:"${t}/sock"