diff --git a/Run.sh b/Run.sh
index 431c629..0aacc75 100755
--- a/Run.sh
+++ b/Run.sh
@@ -41,6 +41,11 @@ function del_ServerActors() {
 	del_iniKey 'Engine.GameEngine' ServerActors $1
 	del_iniKey 'XC_Engine.XC_GameEngine' ServerActors $1
 }
+function getmodprefix() {
+	UFile=$(find $OUTPUT_DIR/System -type f -iname "niut*.u"  -exec basename {} \;)
+	BaseName="${UFile%.*}"
+	echo "$BaseName"
+}
 function install() {
 	rsync -a $SCRIPT_DIR/Help/		$OUTPUT_DIR/Help/  		--exclude  '.git'
 	rsync -a  $SCRIPT_DIR/System/	$OUTPUT_DIR/System/  	--exclude  '.git'
@@ -48,19 +53,14 @@ function install() {
 	echo install ok
 }
 function enable() {
-	NIUTUFile=$(find $OUTPUT_DIR/System -type f -iname "niut*.u"  -exec basename {} \;)
-	NIUTBaseName="${NIUTUFile%.*}"
-	add_ServerPackage $NIUTBaseName
+	BaseName="$(getmodprefix)"
+	add_ServerPackage $BaseName
 	
 	echo enable ok
 }
 function disable() {
-	NIUTUFile=$(find $OUTPUT_DIR/System -type f -iname "niut*.u"  -exec basename {} \;)
-	echo $NIUTUFile
-	NIUTBaseName="${NIUTUFile%.*}"
-	echo $NIUTBaseName
-	
-	del_ServerPackage $NIUTBaseName
+	BaseName="$(getmodprefix)"
+	del_ServerPackage $BaseName
 	
 	echo disable ok
 }
@@ -93,7 +93,7 @@ function config() {
 }
 function show_help() {
 	echo
-	echo "Usage: $0 { install | enable | disable | config } <UT99_INSTALL_DIR> [<UT99_CONFIG_FILE>] [<CONFIG_KEY> <CONFIG_VALUE>]"
+	echo "Usage: $0 { getmodprefix | install | enable | disable | config } <UT99_INSTALL_DIR> [<UT99_CONFIG_FILE>] [<CONFIG_KEY> <CONFIG_VALUE>]"
 	echo
 }
 function check_cfg_file_config() {
@@ -133,7 +133,7 @@ function check_cfg_file_gen() {
 }
 function check_game_dir() {
 	### Check if a directory does not exist ###
-	if [ ! -d $OUTPUT_DIR ]
+	if [ -z $OUTPUT_DIR ]
 	then
 		echo "incorrect <UT99_INSTALL_DIR>"
 		show_help
@@ -141,6 +141,10 @@ function check_game_dir() {
 	fi
 }
 case "$1" in
+	'getmodprefix')
+			check_game_dir
+			getmodprefix
+			;;
 	'install')
 			check_game_dir "$@"
 			install "$@"