diff --git a/.gitignore b/.gitignore
index de3b1ef..246724e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 html/data/*
 html/inc/paths.php
 install/conf.php
+html/svc/BU-commander
diff --git a/html/lib/sysVcom.php b/html/lib/sysVcom.php
index c4e1c2d..f5f7c9d 100644
--- a/html/lib/sysVcom.php
+++ b/html/lib/sysVcom.php
@@ -16,6 +16,8 @@
  
 $g_procName = 'BU-commander';
 //posix_mkfifo( $g_procName, 0644 );
+$g_k_caller = null;
+$g_k_reply = null;
 
 //max msg length - this fails on Mint-21. Trial and error gives a max size of 8182.
 //$g_max_chan = file_get_contents('/proc/sys/kernel/msgmnb');
@@ -25,11 +27,35 @@
 // larger was not enough but 100 was emough. I mean, go figure ???
 $g_max_rcv = $g_max_chan+100;
 
-$g_max_data = $g_max_chan - 2;	//we use the first 2 bytes for msg chunks
-$g_k_caller = ftok( $g_procName, 'A');		//caller
-$g_k_reply = ftok( $g_procName, 'B');		//reply
+$g_max_data = $g_max_chan - 2;
 
 
+function rpc_setGlobals( $name, $value ){
+
+		
+	switch( $name ){
+	
+	case 'procName':
+		global $g_procName;
+		global $g_k_caller;
+		global $g_k_reply;
+		$g_procName = $value;
+		$g_k_caller = ftok( $g_procName, 'A');		//caller
+		$g_k_reply = ftok( $g_procName, 'B');		//reply
+		break;
+	
+	case 'max_chan':
+		global $g_max_chan;
+		global $g_max_rcv;
+		global $g_max_data;
+		$g_max_chan = $value;
+		$g_max_rcv = $g_max_chan+100;
+		$g_max_data = $g_max_chan - 2;	//we use the first 2 bytes for msg chunks
+		break;
+	}
+
+}
+
 //************************************************************************************************************************
 // The following functions all relate to making an RPC.
 // They use the php serialize() to send objects across the process boundary
@@ -55,15 +81,12 @@
 // of a function or parameters.
 //
 
-function clear_IPC( ){
-
-	global $g_k_caller;
-	global $g_k_reply;
-
-	$q_caller = msg_get_queue($g_k_caller);
+function clear_IPC( $g_procName ){	
+	
+	$q_caller = msg_get_queue( ftok( $g_procName, 'A') );
 	msg_remove_queue($q_caller);
 	
-	$q_reply = msg_get_queue($g_k_reply);
+	$q_reply = msg_get_queue( ftok( $g_procName, 'B') );
 	msg_remove_queue($q_reply);
 	
 }
diff --git a/html/svc/main.php b/html/svc/main.php
new file mode 100644
index 0000000..4110dd7
--- /dev/null
+++ b/html/svc/main.php
@@ -0,0 +1,36 @@
+<?php
+
+include __DIR__."/../lib/sysVcom.php";
+
+//create the comms file
+touch('BU-commander');
+
+//remove all queues at startup
+clear_IPC( '../svc/BU-commander' );
+
+rpc_setGlobals( 'procName', '../svc/BU-commander' );
+rpc_setGlobals( 'max_chan', 8182 );
+
+
+$msgArr = null;
+
+while(true){
+	
+	$caller_id = 0;
+	
+	$obj = rpc_listen( $caller_id, $msgArr );
+
+	//print_r( $obj );
+	
+	//do something with the data
+	array_unshift( $obj, "Greetings" );
+
+	//send msg back
+	rpc_reply( $caller_id, $obj );
+
+	//done with the message
+	unset( $msgArr[$caller_id] );
+	
+}
+
+?>
diff --git a/install/rsync-exclude.txt b/install/rsync-exclude.txt
index 075337e..5d03ddf 100644
--- a/install/rsync-exclude.txt
+++ b/install/rsync-exclude.txt
@@ -1 +1,2 @@
 html/inc/.htaccess
+html/svc/BU-commander