diff --git a/remote_connection.sh b/remote_connection.sh
index 2ffe7a5..f279a45 100755
--- a/remote_connection.sh
+++ b/remote_connection.sh
@@ -18,10 +18,10 @@ default_ssh_port="22"
 default_rsp_port="3389"
 default_vnc_port="5900"
 
-Version="2.0.0"
+Version="2.0.1"
 
-Help_message="
-$(basename $0) PROTOCOL [OPTION] [OPTION=VALUE]
+Usage="
+$(basename $0) [OPTION] [OPTION=VALUE] PROTOCOL
 
 script which permit to launch a remote connection protocol.
 
@@ -56,26 +56,14 @@ start_rsp() {
         port="${default_rsp_port}"
     fi
     hostname="${hostname}:${port}"
-    echo "start rsp"
+    echo "start rsp with user=${user} port=${port} hostname=${hostname}"
     xfreerdp /v:"${hostname}" /u:"${user}" /dynamic-resolution
 }
 
 
-case "$1" in
-    "ssh")
-        protocol="ssh"
-        ;;
-    "rsp")
-        protocol="rsp"
-        ;;
-    *)
-        echo "protocol $1 uknown" >&2
-        exit 1
-esac
-
 # looking for double parametters.
 
-for (( arg=2; arg<$#; arg++)); do
+for (( arg=1; arg<$#; arg++)); do
     value="$((arg+1))"
     if [ "${!arg}" == "-u" ]
     then
@@ -93,24 +81,36 @@ done
 # looking for all parametter alone
 
 for i in "$@"; do
-    if [ "${i%=*}" == "--user" ]
-    then
-        user="${i#*=}"
-    elif [ "${i%=*}" == "--port" ]
-    then
-        port="${i#*=}"
-    elif [ "${i#*=}" == "--hostname" ]
-    then
-        hostname="${i#*=}"
-    elif [ "${i}" == "--version" ] || [ "${i}" == "-v" ]
-    then
-        echo "$(basename $0) v.${Version}"
-        exit 0
-    elif [ "${i}" == "--help" ] || [ "${i}" == "-h" ]
-    then
-        echo "$Help_message"
-        exit 0
-    fi
+    case "$i" in
+        "ssh")
+            protocol="ssh"
+            ;;
+        "rsp")
+            protocol="rsp"
+            ;;
+        "--version" | "-v")
+            echo "$(basename $0) v.${Version}"
+            exit 0
+            ;;
+        "--help" | "-h")
+            echo "${Usage}"
+            exit 0
+            ;;
+    esac
+done
+
+for i in "$@"; do
+    case "${i%=*}" in
+        "--user")
+            user="${i#*=}"
+            ;;
+        "--port")
+            port="${i#*=}"
+            ;;
+        "--hostname")
+            hostname="${i#*=}"
+            ;;
+    esac
 done
 
 if [ "${user}" == "" ]
@@ -132,8 +132,9 @@ case "${protocol}" in
         start_rsp
         ;;
     *)
-        echo "CRITICAL protocol ${protocol} uknown" >&2
-        exit 1
+        echo "protocol ${protocol} uknown" >&2
+        echo ${Usage}
+        exit
         ;;
 esac