diff --git a/doc/examples/param.yaml b/doc/examples/param.yaml
index 6516bb8..d8d2dc4 100644
--- a/doc/examples/param.yaml
+++ b/doc/examples/param.yaml
@@ -9,9 +9,21 @@ global_loop_param_num: [1, 2, 3]
 # Plot parameters
 plot_log_path: /tmp/testium_plot/$(testrun_date)/$(testrun_time)/
 
-# python_path: $(home)/tmp/tum_venv/bin/python3
+python_path_Windows: C:\Users\François\Applications\Python313\python.exe
+python_path_Linux: $(home)/tmp/tum_venv/bin/python3
+
+# lua_path_Windows: C:\Lua\5.1
+# lua_path_Linux: /usr/bin/lua
+
+LUA_PATH_Linux: /usr/share/lua/5.4/?.lua;/usr/local/share/lua/5.4/?.lua;/usr/local/share/lua/5.4/?/init.lua;/usr/share/lua/5.4/?/init.lua;/usr/local/lib/lua/5.4/?.lua;/usr/local/lib/lua/5.4/?/init.lua;/usr/lib/lua/5.4/?.lua;/usr/lib/lua/5.4/?/init.lua;./?.lua;./?/init.lua;/home/francois/.luarocks/share/lua/5.4/?.lua;/home/francois/.luarocks/share/lua/5.4/?/init.lua
+LUA_CPATH_Linux: /usr/local/lib/lua/5.4/?.so;/usr/lib/lua/5.4/?.so;/usr/local/lib/lua/5.4/loadall.so;/usr/lib/lua/5.4/loadall.so;./?.so;/home/francois/.luarocks/lib/lua/5.4/?.so
+PATH_Linux: ""
+
+LUA_PATH_Windows: ;.\?.lua;C:\Lua\5.1\lua\?.lua;C:\Lua\5.1\lua\?\init.lua;C:\Lua\5.1\?.lua;C:\Lua\5.1\?\init.lua;C:\Lua\5.1\lua\?.luac
+LUA_CPATH_Windows: .\?.dll;C:\Lua\5.1\?.dll;C:\Lua\5.1\loadall.dll;C:\Lua\5.1\clibs\?.dll;C:\Lua\5.1\clibs\loadall.dll;.\?51.dll;C:\Lua\5.1\?51.dll;C:\Lua\5.1\clibs\?51.dll
+PATH_Windows: ""
 
-# lua_path: /usr/bin/lua
 lua_env:
-  LUA_PATH: /usr/share/lua/5.4/?.lua;/usr/local/share/lua/5.4/?.lua;/usr/local/share/lua/5.4/?/init.lua;/usr/share/lua/5.4/?/init.lua;/usr/local/lib/lua/5.4/?.lua;/usr/local/lib/lua/5.4/?/init.lua;/usr/lib/lua/5.4/?.lua;/usr/lib/lua/5.4/?/init.lua;./?.lua;./?/init.lua;/home/francois/.luarocks/share/lua/5.4/?.lua;/home/francois/.luarocks/share/lua/5.4/?/init.lua
-  LUA_CPATH: /usr/local/lib/lua/5.4/?.so;/usr/lib/lua/5.4/?.so;/usr/local/lib/lua/5.4/loadall.so;/usr/lib/lua/5.4/loadall.so;./?.so;/home/francois/.luarocks/lib/lua/5.4/?.so
+  PATH: $(PATH_$(os))
+  LUA_PATH: $(LUA_PATH_$(os))
+  LUA_CPATH: $(LUA_CPATH_$(os))
diff --git a/src/testium/interpreter/process.py b/src/testium/interpreter/process.py
index 2c84ac2..2762ba5 100644
--- a/src/testium/interpreter/process.py
+++ b/src/testium/interpreter/process.py
@@ -122,7 +122,9 @@ python_path = {tm.gd("python_path", "no python path defined")}"""
                                         raise ETUMRuntimeError(
                                             f"""Impossible to start the external lua execution process.
 Is the lua path correct ?
-lua_path = {tm.gd("lua_path", "no lua path defined")}"""
+  lua_path = {tm.gd("lua_path", "no lua path defined")}
+Are "lua-sockets" and "lua-cjson" installed ?
+Is the lua environnment well defined in the "LUA_PATH" and "LUA_CPATH" variables ?"""
                                         )
                                 test_set.execute()
                             finally:
diff --git a/src/testium/interpreter/test_items/test_item_console.py b/src/testium/interpreter/test_items/test_item_console.py
index af009e0..984c0bc 100644
--- a/src/testium/interpreter/test_items/test_item_console.py
+++ b/src/testium/interpreter/test_items/test_item_console.py
@@ -3,7 +3,7 @@ import os
 import importlib
 import traceback
 
-from libs import testium as tm
+import libs.testium as tm
 from interpreter.utils.tum_except import ETUMSyntaxError
 from interpreter.utils.stdout_redirect import stdio_redir
 from interpreter.test_items.test_item import test_run
@@ -58,7 +58,7 @@ class TestItemConsoleOpen(TestItemConsoleAction):
             telnet_port = self._prms.getParam("telnet_port", default=69)
 
         elif self._protocol == "ssh":
-            if sys.platform.startswith("win"):
+            if tm.OS() == "Windows":
                 self.result.set(
                     TestValue.FAILURE, "SSH protocol not supported on Windows"
                 )
@@ -112,7 +112,7 @@ class TestItemConsoleOpen(TestItemConsoleAction):
                     )
 
             elif self._protocol == "ssh":
-                if sys.platform.startswith("win"):
+                if tm.OS() == "Windows":
                     raise ETUMSyntaxError(
                         f"The '{self.cmd()}' test item named '{self.name()}' does not support SSH protocol on Windows",
                         self.seqFilename()
diff --git a/src/testium/interpreter/utils/jrpc.py b/src/testium/interpreter/utils/jrpc.py
index 900b441..d1ffa35 100644
--- a/src/testium/interpreter/utils/jrpc.py
+++ b/src/testium/interpreter/utils/jrpc.py
@@ -380,23 +380,14 @@ class JsonRpcClient(JsonRpcBase):
         # TCP/IP socket creation
         try:
             with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
-
+                sock.settimeout(self._timeout)
                 # Link of the socket at the configured port
-                tslice = 0.2
-                t = self._timeout
-                while True:
-                    try:
-                        sock.connect((self._host, self._port))
-                    except OSError:
-                        t -= tslice
-                        if t >= 0:
-                            sleep(tslice)
-                            continue
-                        else:
-                            raise ETUMRuntimeError(f"{self.name}: failed to connect")
-                    break
+                try:
+                    sock.connect((self._host, self._port))
+                except OSError:
+                    raise ETUMRuntimeError(f"{self.name}: failed to connect")
+                
                 self.print_info("Connected to server")
-
                 self.connect(sock)
 
                 while self._rpc.running:
diff --git a/src/testium/interpreter/utils/lua_func_exec.py b/src/testium/interpreter/utils/lua_func_exec.py
index dbe255d..9a190ed 100644
--- a/src/testium/interpreter/utils/lua_func_exec.py
+++ b/src/testium/interpreter/utils/lua_func_exec.py
@@ -3,6 +3,7 @@ import shutil
 import subprocess
 import socket
 import libs.testium as tm
+from interpreter.utils.paths import sys_lua_path
 from interpreter.utils.tum_except import ETUMRuntimeError
 from interpreter.utils.jrpc import JsonRpcClient
 from interpreter.test_items.test_result import TestValue
@@ -16,17 +17,6 @@ def lua_func_call_init(lua_path, request_handler):
     return function_call_process
 
 
-def lua_version(path: str):
-    result = subprocess.run(
-        [path, "-v"],
-        stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
-        text=True,
-    )
-    vers = ((result.stdout.split(" "))[1]).split(".")
-    return (vers[0], vers[1], vers[2])
-
-
 def is_lua_interpreter(path: str, timeout=2) -> bool:
     try:
         result = subprocess.run(
@@ -55,7 +45,11 @@ class LuaFuncExecEngine:
                     f"The passed executable is not a lua interpreter: '{lua_path}'"
                 )
         else:
-            lua_path = "/usr/bin/lua"
+            lua_path = sys_lua_path()
+            if lua_path == "":
+                raise ETUMRuntimeError(
+                    f"No valid lua interpreter found"
+                )
             tm.setgd("lua_path", lua_path)
 
         self._lpath = lua_path
@@ -78,8 +72,9 @@ class LuaFuncExecEngine:
 
         func_proc_path = os.path.join(tm.gd("testium_path"),"lua_func")
         lua_env = tm.gd("lua_env", {})
+        tm.print_debug(f"lua_env : {lua_env}")
 
-        params = [self._lpath, "main.lua", "--host", "127.0.0.1", "--port", f"{self._port}"]
+        params = [self._lpath, "main.lua", "--timeout", "10", "--host", "127.0.0.1", "--port", f"{self._port}"]
 
         if tm.debug_enabled():
             params.append("--verbose")
diff --git a/src/testium/interpreter/utils/paths.py b/src/testium/interpreter/utils/paths.py
index 565b078..c8285c0 100644
--- a/src/testium/interpreter/utils/paths.py
+++ b/src/testium/interpreter/utils/paths.py
@@ -1,9 +1,10 @@
 import os
+import sys
 import inspect
 from pathlib import Path
 import testium
 from interpreter.utils.params import expanse
-
+import subprocess
 import libs.testium as tm
 
 
@@ -34,3 +35,156 @@ def abs_path_from_file(file):
     abs_file_path = abs_file_path.resolve()
     return abs_file_path
 
+
+def sys_encoding():
+    if tm.OS() == "Windows":
+        enc = 'oem'
+    else:
+        enc = 'utf-8'
+    return enc
+
+
+def _python_version(path: str):
+    cmd = f'"{path}" -c "import sys; print(sys.version_info[:3])"'
+    try:
+        result = subprocess.run(
+            cmd, 
+            shell=True, 
+            capture_output=True, 
+            text=True, 
+            encoding=sys_encoding(),
+            timeout=10
+        )
+        data = result.stdout
+    except (FileNotFoundError, PermissionError, subprocess.TimeoutExpired) as e:
+        tm.print_debug(str(e))
+        data = ""
+    return eval(data)
+
+
+def _lua_version(path: str):
+    cmd = f'"{path}" -v"'
+    try:
+        result = subprocess.run(
+            cmd,
+            shell=True,
+            capture_output=True, 
+            text=True, 
+            encoding=sys_encoding(),
+            timeout=10
+        )
+        # Under windows, the output is on stderr
+        data = result.stdout or result.stderr
+    except (FileNotFoundError, PermissionError, subprocess.TimeoutExpired) as e:
+        data = ""
+    try:
+        vers = ((data.split(" "))[1]).split(".")
+    except:
+        vers = (0, 0, 0)
+    return (vers[0], vers[1], vers[2])
+
+
+def is_python3(python_path):
+    try:
+        v = _python_version(python_path)
+        if v[0] == 3:
+            res = True
+    except:
+        res = False
+    
+    return res
+
+
+def is_lua51(lua_path):
+    res = False
+    v = _lua_version(lua_path)
+    if (v[0] == "5") and (v[1] >= "1"):
+        res = True
+    return res
+
+
+def _sys_app_path_win(app_name):
+    try:
+        result = subprocess.run(
+            f"where {app_name}", 
+            shell=True, 
+            capture_output=True, 
+            text=True, 
+            encoding="oem",
+            timeout=10
+        )
+        data = result.stdout
+    except (FileNotFoundError, PermissionError, subprocess.TimeoutExpired):
+        data = ""
+    sys_python_path = data.splitlines()
+    tm.print_debug("data = ", data)
+    for l in sys_python_path:
+        if f"{app_name}.exe" in l:
+            return l
+    return ""
+
+
+def _sys_app_path_lin(app_name):
+    try:
+        result = subprocess.run(
+            f"which {app_name}", 
+            shell=True, 
+            capture_output=True, 
+            text=True, 
+            timeout=10
+        )
+        data = result.stdout
+    except (FileNotFoundError, PermissionError, subprocess.TimeoutExpired):
+        data = ""
+    sys_python_path = data.splitlines()
+    for l in sys_python_path:
+        if (
+            (f"{app_name}" in l)
+            and not l.startswith("which:")
+        ):
+            return l
+    return ""
+
+
+def sys_python_path():
+    sys_python_path = tm.gd("_sys_python_path", "")
+    if sys_python_path != "":
+        return sys_python_path
+
+    cur_os = tm.OS()
+    if cur_os == "Windows":
+        func = _sys_app_path_win
+    else:
+        func = _sys_app_path_lin
+
+    exe=["python3", "python"]
+    for e in exe:
+        sys_python_path = func(e)
+        if sys_python_path == "":
+            continue
+        if not is_python3(sys_python_path):
+            sys_python_path = ""
+            continue
+
+    tm.setgd("_sys_python_path", sys_python_path)
+    return sys_python_path
+
+
+def sys_lua_path():
+    sys_lua_path = tm.gd("_sys_lua_path", "")
+    if sys_lua_path != "":
+        return sys_lua_path
+
+    cur_os = tm.OS()
+    if cur_os == "Windows":
+        func = _sys_app_path_win
+    else:
+        func = _sys_app_path_lin
+
+    sys_lua_path = func("lua")
+    if (sys_lua_path != "") and not is_lua51(sys_lua_path):
+        tm.print_debug(f"'{sys_lua_path}' not a lua 5.1 min.")
+        sys_lua_path = ""
+
+    tm.setgd("_sys_lua_path", sys_lua_path)
+    return sys_lua_path
diff --git a/src/testium/interpreter/utils/py_func_exec.py b/src/testium/interpreter/utils/py_func_exec.py
index 3b70d28..9e04bf8 100644
--- a/src/testium/interpreter/utils/py_func_exec.py
+++ b/src/testium/interpreter/utils/py_func_exec.py
@@ -3,6 +3,7 @@ import shutil
 import subprocess
 import socket
 import libs.testium as tm
+from interpreter.utils.paths import sys_python_path
 from interpreter.utils.tum_except import ETUMRuntimeError
 from interpreter.utils.jrpc import JsonRpcClient
 from interpreter.test_items.test_result import TestValue
@@ -16,16 +17,6 @@ def py_func_call_init(python_path, request_handler):
     return function_call_process
 
 
-def python_version(path: str):
-    result = subprocess.run(
-        [path, "-c", "import sys; print(sys.version_info[:3])"],
-        stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
-        text=True,
-    )
-    return eval(result.stdout.strip())
-
-
 def is_python_interpreter(path: str, timeout=2) -> bool:
     try:
         result = subprocess.run(
@@ -56,7 +47,11 @@ class PyFuncExecEngine:
                 )
 
         else:
-            python_path = sys.executable
+            python_path = sys_python_path()
+            if python_path == "":
+                raise ETUMRuntimeError(
+                    f"No valid python interpreter found"
+                )
             tm.setgd("python_path", python_path)
 
         self._ppath = python_path
diff --git a/src/testium/libs/console.py b/src/testium/libs/console.py
index 025184e..24aa038 100755
--- a/src/testium/libs/console.py
+++ b/src/testium/libs/console.py
@@ -56,6 +56,7 @@ class Console(object):
     def __init__(self, name, echoOn=False, write_delay=0):
         self.stream = sys.stdout
         self.name = name
+        self.encoding = "utf-8"
         self.echo_on = echoOn
         self.write_delay = write_delay
         self.string_buffer = '['+str(datetime.now()).split('.')[0].split(' ')[1]+' '+self.name+']'
@@ -117,9 +118,9 @@ A {classname}.close() is missing somewhere in your code !'.format(classname=type
         return True
 
     def _compute_char(self, data):
-        c = data.decode('utf-8', errors='replace')
-        if not self._is_valid_character(c):
-            c = ''
+        c = data.decode(self.encoding, errors='replace')
+        # if not self._is_valid_character(c):
+        #    c = ''
         return c
 
     def read_until(self, match, timeout=None, return_data=False, mute=False):
@@ -234,11 +235,11 @@ A {classname}.close() is missing somewhere in your code !'.format(classname=type
             print(('[>' + self.name + '] : ' + characters), end=ech)
         if self.write_delay != 0:
             for char in characters:
-                self.port.write(char.encode('utf-8'))
+                self.port.write(char.encode(self.encoding))
                 sleep(self.write_delay)
             return len(characters)
         else:
-            return self.port.write(characters.encode('utf-8'))
+            return self.port.write(characters.encode(self.encoding))
 
 
 if not sys.platform.startswith('win'):
@@ -296,7 +297,7 @@ class TelnetConsole(Console):
         return self.read_until('\n', return_data=True)[1]
 
     def read_nowait(self, mute=False):
-        st = self.port.read_very_eager().decode('utf-8', errors='replace')
+        st = self.port.read_very_eager().decode(self.encoding, errors='replace')
         if not mute:
             date_str = str(datetime.now()).split('.')[0].split(' ')[1]
             self.stream.write('[{} {}]'.format(date_str, self.name)+st)
@@ -455,13 +456,13 @@ class SerialConsole(Console):
             if not self._thd.is_alive() and not self.stop.isSet():
                 raise RuntimeError(
                     "Impossible to read the serial console, it may be already openned")
-            st = self.rx_queue.getAll().decode('utf-8', errors='replace')
+            st = self.rx_queue.getAll().decode(self.encoding, errors='replace')
             if not mute:
                 date_str = str(datetime.now()).split('.')[0].split(' ')[1]
                 self.stream.write('[{} {}]'.format(date_str, self.name)+st)
             return st
 
-        st = self.port.read(self.port.inWaiting()).decode('utf-8', errors='replace')
+        st = self.port.read(self.port.inWaiting()).decode(self.encoding, errors='replace')
         if not mute:
             date_str = str(datetime.now()).split('.')[0].split(' ')[1]
             self.stream.write('[{} {}]'.format(date_str, self.name)+st)
@@ -540,7 +541,7 @@ class LoggedConsole(Console):
                 self.rx_queue.put(data)
             else:
                 continue
-            data = data.decode('utf-8', errors='replace')
+            data = data.decode(self.encoding, errors='replace')
             # if valid char, write into the file
             if self._is_valid_character(data):
                 # replace '\r' by '\n' and '\r\n' by '\n'
@@ -583,7 +584,7 @@ class LoggedConsole(Console):
             raise ConnectionAbortedError
         chars = ''
         for _ in range(self.rx_queue.qsize()):
-            chars = chars + self.rx_queue.get().decode('utf-8', errors='replace')
+            chars = chars + self.rx_queue.get().decode(self.encoding, errors='replace')
 
         if not mute:
             date_str = str(datetime.now()).split('.')[0].split(' ')[1]
diff --git a/src/testium/libs/raw_tcp_console.py b/src/testium/libs/raw_tcp_console.py
index 42dfc16..d4b96c5 100644
--- a/src/testium/libs/raw_tcp_console.py
+++ b/src/testium/libs/raw_tcp_console.py
@@ -59,7 +59,7 @@ class RawTCPConsole(Console):
         self.sock.settimeout(0)
         self.stimeout = 0
         s = self.sock.recv(4096)
-        st = s.decode('utf-8', errors='replace')
+        st = s.decode(self.encoding, errors='replace')
         if not mute:
             date_str = str(datetime.now()).split('.')[0].split(' ')[1]
             self.stream.write('[{} {}]'.format(date_str, self.name)+st)
@@ -69,5 +69,5 @@ class RawTCPConsole(Console):
         if self.echo_on and not mute:
             ech = '' if s.strip(' ').endswith('\n') else '\n'
             print(('[>' + self.name + '] : ' + s), end=ech)
-        res = self.sock.sendall(s.encode('utf-8'))
+        res = self.sock.sendall(s.encode(self.encoding))
         return res
diff --git a/src/testium/libs/termconsole.py b/src/testium/libs/termconsole.py
index 7244d43..ea6f753 100644
--- a/src/testium/libs/termconsole.py
+++ b/src/testium/libs/termconsole.py
@@ -1,5 +1,6 @@
 from datetime import datetime
 import sys
+import locale
 if sys.platform.startswith('win'):
     import subprocess
 else:
@@ -16,6 +17,9 @@ class TermConsole(Console):
 
     def __init__(self, name, project_path=None, cust_shell=None, echoOn=False, write_delay=0):
         Console.__init__(self, name, echoOn, write_delay)
+        if sys.platform.startswith('win'):
+            self.encoding = 'cp850'
+        
         if not project_path:
             self.ppath = os.getcwd()
         else:
@@ -111,7 +115,7 @@ class TermConsole(Console):
 
         s += self.q.getAll()
 
-        st = s.decode('utf-8', errors='replace')
+        st = s.decode(self.encoding, errors='replace')
 
         ls = st.splitlines()
         if (len(st) > 0) and (st[-1] != '\r') and (st[-1] !='\n'):
@@ -129,7 +133,7 @@ class TermConsole(Console):
             ech = '' if s.strip(' ').endswith('\n') else '\n'
             print(('[>' + self.name + '] : ' + s), end=ech)
         if sys.platform.startswith('win'):
-            res = self.term.stdin.write(s.encode('utf-8'))
+            res = self.term.stdin.write(s.encode(self.encoding))
         else:
             res = self.term.send(s)
 
diff --git a/src/testium/lua_func/main.lua b/src/testium/lua_func/main.lua
index b7dd3b9..5c51356 100644
--- a/src/testium/lua_func/main.lua
+++ b/src/testium/lua_func/main.lua
@@ -64,8 +64,17 @@ local handle = require("handle")
 utils.verbose = config.verbose
 
 -- Create the master socket
-local server_sock = assert(socket.bind(config.host, config.port))
-utils.log("listening on %s:%d", config.host, config.port)
+local server_sock = socket.tcp()
+
+local ok, err = server_sock:bind(config.host, config.port)
+if not ok then
+    utils.log("error : %s", err)
+    os.exit(1)
+end
+
+server_sock:listen(1)
+local ip, port = server_sock:getsockname()
+utils.log("listening on %s:%d", ip, port)
 
 server_sock:settimeout(config.timeout) -- Prevents hanging on dead connections
 
diff --git a/src/testium/main_win/test_tree_items/test_tree_item.py b/src/testium/main_win/test_tree_items/test_tree_item.py
index b9eb355..34e6748 100644
--- a/src/testium/main_win/test_tree_items/test_tree_item.py
+++ b/src/testium/main_win/test_tree_items/test_tree_item.py
@@ -56,7 +56,7 @@ class QTestTreeItem(QTreeWidgetItem):
         self._display_pause = False
         self.icon_pause = QIcon()
         self.icon_fake = QIcon()
-        self.icon_pause.addPixmap(QPixmap(icon_prefix() + "/stop.png"))
+        self.icon_pause.addPixmap(QPixmap(icon_prefix() + "/break.png"))
         self.nfailure = 0
         self._timestamp = -1
         self._is_skipped = False