diff --git a/pype/ftrack/lib/ftrack_app_handler.py b/pype/ftrack/lib/ftrack_app_handler.py
index ea769ad167..825a0a1985 100644
--- a/pype/ftrack/lib/ftrack_app_handler.py
+++ b/pype/ftrack/lib/ftrack_app_handler.py
@@ -256,14 +256,6 @@ class AppAction(BaseHandler):
         env = acre.merge(env, current_env=dict(os.environ))
         env = acre.append(dict(os.environ), env)
 
-
-        #
-        # tools_env = acre.get_tools(tools)
-        # env = acre.compute(dict(tools_env))
-        # env = acre.merge(env, dict(os.environ))
-        # os.environ = acre.append(dict(os.environ), env)
-        # os.environ = acre.compute(os.environ)
-
         # Get path to execute
         st_temp_path = os.environ['PYPE_CONFIG']
         os_plat = platform.system().lower()
diff --git a/pype/hooks/unreal/unreal_prelaunch.py b/pype/hooks/unreal/unreal_prelaunch.py
new file mode 100644
index 0000000000..05d95a0b2a
--- /dev/null
+++ b/pype/hooks/unreal/unreal_prelaunch.py
@@ -0,0 +1,8 @@
+from pype.lib import PypeHook
+
+
+class UnrealPrelaunch(PypeHook):
+
+    def execute(**kwargs):
+        print("I am inside!!!")
+        pass
diff --git a/pype/lib.py b/pype/lib.py
index 73bc16e97a..d1062e468f 100644
--- a/pype/lib.py
+++ b/pype/lib.py
@@ -1,10 +1,13 @@
 import os
+import sys
+import types
 import re
 import logging
 import itertools
 import contextlib
 import subprocess
 import inspect
+from abc import ABCMeta, abstractmethod
 
 import six
 
@@ -123,7 +126,8 @@ def modified_environ(*remove, **update):
     is sure to work in all situations.
 
     :param remove: Environment variables to remove.
-    :param update: Dictionary of environment variables and values to add/update.
+    :param update: Dictionary of environment variables
+                   and values to add/update.
     """
     env = os.environ
     update = update or {}
@@ -347,8 +351,8 @@ def switch_item(container,
         "parent": version["_id"]}
     )
 
-    assert representation, ("Could not find representation in the database with"
-                            " the name '%s'" % representation_name)
+    assert representation, ("Could not find representation in the database "
+                            "with the name '%s'" % representation_name)
 
     avalon.api.switch(container, representation)
 
@@ -481,7 +485,9 @@ def get_subsets(asset_name,
     """
     Query subsets with filter on name.
 
-    The method will return all found subsets and its defined version and subsets. Version could be specified with number. Representation can be filtered.
+    The method will return all found subsets and its defined version
+    and subsets. Version could be specified with number. Representation
+    can be filtered.
 
     Arguments:
         asset_name (str): asset (shot) name
@@ -498,8 +504,8 @@ def get_subsets(asset_name,
     asset_io = io.find_one({"type": "asset", "name": asset_name})
 
     # check if anything returned
-    assert asset_io, "Asset not existing. \
-                      Check correct name: `{}`".format(asset_name)
+    assert asset_io, (
+        "Asset not existing. Check correct name: `{}`").format(asset_name)
 
     # create subsets query filter
     filter_query = {"type": "subset", "parent": asset_io["_id"]}
@@ -513,7 +519,9 @@ def get_subsets(asset_name,
     # query all assets
     subsets = [s for s in io.find(filter_query)]
 
-    assert subsets, "No subsets found. Check correct filter. Try this for start `r'.*'`: asset: `{}`".format(asset_name)
+    assert subsets, ("No subsets found. Check correct filter. "
+                     "Try this for start `r'.*'`: "
+                     "asset: `{}`").format(asset_name)
 
     output_dict = {}
     # Process subsets
@@ -593,15 +601,43 @@ def execute_hook(hook, **kwargs):
     class_name = hook.split("/")[-1]
 
     abspath = os.path.join(os.getenv('PYPE_ROOT'),
-                           'repos', 'pype', **hook.split("/")[:-1])
+                           'repos', 'pype', *hook.split("/")[:-1])
+
+    mod_name, mod_ext = os.path.splitext(os.path.basename(abspath))
+
+    if not mod_ext == ".py":
+        return
+
+    module = types.ModuleType(mod_name)
+    module.__file__ = abspath
+
+    log.info("-" * 80)
+    print(module)
 
     try:
         with open(abspath) as f:
-            six.exec_(f.read())
+            six.exec_(f.read(), module.__dict__)
+
+        sys.modules[abspath] = module
 
     except Exception as exp:
         log.exception("loading hook failed: {}".format(exp),
                       exc_info=True)
 
+    from pprint import pprint
+    print("-" * 80)
+    pprint(dir(module))
+
     hook_obj = globals()[class_name]()
     hook_obj.execute(**kwargs)
+
+
+@six.add_metaclass(ABCMeta)
+class PypeHook:
+
+    def __init__(self):
+        pass
+
+    @abstractmethod
+    def execute(**kwargs):
+        pass
diff --git a/res/app_icons/ue4.png b/res/app_icons/ue4.png
new file mode 100644
index 0000000000..39201de664
Binary files /dev/null and b/res/app_icons/ue4.png differ