diff --git a/gns3server/modules/vpcs/__init__.py b/gns3server/modules/vpcs/__init__.py
index 1b416889..37c7e583 100644
--- a/gns3server/modules/vpcs/__init__.py
+++ b/gns3server/modules/vpcs/__init__.py
@@ -275,6 +275,9 @@ class VPCS(IModule):
         name = None
         if "name" in request:
             name = request["name"]
+        base_script_file = None
+        if "base_script_file" in request:
+            base_script_file = request["base_script_file"]
         vpcs_path = request["path"]
 
         try:
@@ -285,7 +288,7 @@ class VPCS(IModule):
             except OSError as e:
                 raise VPCSError("Could not create working directory {}".format(e))
 
-            vpcs_instance = VPCSDevice(vpcs_path, self._working_dir, host=self._host, name=name)
+            vpcs_instance = VPCSDevice(vpcs_path, base_script_file, self._working_dir, host=self._host, name=name)
             # find a console port
             if self._current_console_port > self._console_end_port_range:
                 self._current_console_port = self._console_start_port_range
@@ -348,7 +351,6 @@ class VPCS(IModule):
 
         Optional request parameters:
         - any setting to update
-        - script_file_base64 (script-file base64 encoded)
 
         Response parameters:
         - updated settings
@@ -366,26 +368,6 @@ class VPCS(IModule):
             return
 
         response = {}
-        try:
-            # a new script-file has been pushed
-            if "script_file_base64" in request:
-                config = base64.decodestring(request["script_file_base64"].encode("utf-8")).decode("utf-8")
-                config = "!\n" + config.replace("\r", "")
-                config = config.replace('%h', vpcs_instance.name)
-                config_path = os.path.join(vpcs_instance.working_dir, "script-file")
-                try:
-                    with open(config_path, "w") as f:
-                        log.info("saving script-file to {}".format(config_path))
-                        f.write(config)
-                except OSError as e:
-                    raise VPCSError("Could not save the configuration {}: {}".format(config_path, e))
-                # update the request with the new local script-file path
-                request["script_file"] = os.path.basename(config_path)
-
-        except VPCSError as e:
-            self.send_custom_error(str(e))
-            return
-
         # update the VPCS settings
         for name, value in request.items():
             if hasattr(vpcs_instance, name) and getattr(vpcs_instance, name) != value:
diff --git a/gns3server/modules/vpcs/schemas.py b/gns3server/modules/vpcs/schemas.py
index d1061384..fbfd13f2 100644
--- a/gns3server/modules/vpcs/schemas.py
+++ b/gns3server/modules/vpcs/schemas.py
@@ -30,7 +30,12 @@ VPCS_CREATE_SCHEMA = {
             "description": "path to the VPCS executable",
             "type": "string",
             "minLength": 1,
-        }
+        },
+        "base_script_file": {
+            "description": "path to the VPCS startup configuration file",
+            "type": "string",
+            "minLength": 1,
+        },
     },
     "required": ["path"]
 }
@@ -67,15 +72,11 @@ VPCS_UPDATE_SCHEMA = {
             "type": "string",
             "minLength": 1,
         },
-        "script_file": {
+        "base_script_file": {
             "description": "path to the VPCS startup configuration file",
             "type": "string",
             "minLength": 1,
         },
-        "script_file_base64": {
-            "description": "startup configuration base64 encoded",
-            "type": "string"
-        },
     },
     "required": ["id"]
 }
diff --git a/gns3server/modules/vpcs/vpcs_device.py b/gns3server/modules/vpcs/vpcs_device.py
index af4ba19d..3e59fbba 100644
--- a/gns3server/modules/vpcs/vpcs_device.py
+++ b/gns3server/modules/vpcs/vpcs_device.py
@@ -45,7 +45,7 @@ class VPCSDevice(object):
 
     _instances = []
 
-    def __init__(self, path, working_dir, host="127.0.0.1", name=None):
+    def __init__(self, path, base_script_file, working_dir, host="127.0.0.1", name=None):
 
         # find an instance identifier (1 <= id <= 255)
         # This 255 limit is due to a restriction on the number of possible
@@ -74,7 +74,7 @@ class VPCSDevice(object):
         self._started = False
 
         # VPCS settings
-        self._script_file = ""
+        self._base_script_file = base_script_file
         self._ethernet_adapters = [EthernetAdapter()]  # one adapter = 1 interfaces
         self._slots = self._ethernet_adapters
 
@@ -93,7 +93,7 @@ class VPCSDevice(object):
 
         vpcs_defaults = {"name": self._name,
                          "path": self._path,
-                         "script_file": self._script_file,
+                         "base_script_file": self._base_script_file,
                          "console": self._console}
 
         return vpcs_defaults
@@ -432,29 +432,29 @@ class VPCSDevice(object):
 
         command.extend(["-m", str(self._id)])   # The unique ID is used to set the mac address offset
         command.extend(["-i", str(1)])  # Option to start only one pc instance
-        if self._script_file:
-            command.extend([self._script_file])
+        if self._base_script_file:
+            command.extend([self._base_script_file])
         return command
 
     @property
-    def script_file(self):
+    def base_script_file(self):
         """
         Returns the script-file for this VPCS instance.
 
         :returns: path to script-file file
         """
 
-        return self._script_file
+        return self._base_script_file
 
-    @script_file.setter
-    def script_file(self, script_file):
+    @base_script_file.setter
+    def base_script_file(self, base_script_file):
         """
-        Sets the script-file for this VPCS instance.
+        Sets the base-script-file for this VPCS instance.
 
-        :param script_file: path to script-file file
+        :param base_script_file: path to base-script-file file
         """
 
-        self._script_file = script_file
-        log.info("VPCS {name} [id={id}]: script_file set to {config}".format(name=self._name,
+        self._base_script_file = base_script_file
+        log.info("VPCS {name} [id={id}]: base_script_file set to {config}".format(name=self._name,
                                                                                  id=self._id,
-                                                                                 config=self._script_file))
+                                                                                 config=self._base_script_file))