diff --git a/scripts/build.sh b/scripts/build.sh
index 5599dad4..96d00ded 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 # activate venv
-source /home/sven/Nextcloud_Sven/Schreibtisch/git_sh-edraft_de/sh_cpl/cpl-env/bin/activate
+source /home/sven/Nextcloud_Sven/Schreibtisch/git_sh-edraft_de/sh_cpl/venv/bin/activate
 
 # CPL
 cd /home/sven/Nextcloud_Sven/Schreibtisch/git_sh-edraft_de/sh_cpl/src/cpl_core
diff --git a/src/cpl_cli/cpl_cli.json b/src/cpl_cli/cpl_cli.json
index 9694bc91..c543514f 100644
--- a/src/cpl_cli/cpl_cli.json
+++ b/src/cpl_cli/cpl_cli.json
@@ -16,7 +16,7 @@
     "LicenseName": "MIT",
     "LicenseDescription": "MIT, see LICENSE for more details.",
     "Dependencies": [
-      "cpl-core>=2022.6.1"
+      "cpl-core>=2022.6.2"
     ],
     "PythonVersion": ">=3.10",
     "PythonPath": {},
diff --git a/src/cpl_core/__init__.py b/src/cpl_core/__init__.py
index 744a4252..e741b291 100644
--- a/src/cpl_core/__init__.py
+++ b/src/cpl_core/__init__.py
@@ -15,11 +15,11 @@ __title__ = 'cpl_core'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
 # imports:
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/application/__init__.py b/src/cpl_core/application/__init__.py
index cab819c0..155bb71f 100644
--- a/src/cpl_core/application/__init__.py
+++ b/src/cpl_core/application/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.application'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -24,6 +24,7 @@ from .application_abc import ApplicationABC
 from .application_builder import ApplicationBuilder
 from .application_builder_abc import ApplicationBuilderABC
 from .startup_abc import StartupABC
+from .startup_extension_abc import StartupExtensionABC
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/application/application_builder.py b/src/cpl_core/application/application_builder.py
index c434c6ec..379e1216 100644
--- a/src/cpl_core/application/application_builder.py
+++ b/src/cpl_core/application/application_builder.py
@@ -1,9 +1,10 @@
-from typing import Type, Optional, Callable
+from typing import Type, Optional, Callable, Union
 
 from cpl_core.application.application_abc import ApplicationABC
 from cpl_core.application.application_builder_abc import ApplicationBuilderABC
 from cpl_core.application.application_extension_abc import ApplicationExtensionABC
 from cpl_core.application.startup_abc import StartupABC
+from cpl_core.application.startup_extension_abc import StartupExtensionABC
 from cpl_core.configuration.configuration import Configuration
 from cpl_core.dependency_injection.service_collection import ServiceCollection
 
@@ -26,38 +27,47 @@ class ApplicationBuilder(ApplicationBuilderABC):
         self._environment = self._configuration.environment
         self._services = ServiceCollection(self._configuration)
 
-        self._extensions: list[Callable] = []
+        self._app_extensions: list[Callable] = []
+        self._startup_extensions: list[Callable] = []
 
     def use_startup(self, startup: Type[StartupABC]):
         self._startup = startup()
 
-    def use_extension(self, extension: Type[ApplicationExtensionABC]):
-        if extension not in self._extensions:
-            self._extensions.append(extension)
+    def use_extension(self, extension: Type[Union[ApplicationExtensionABC, StartupExtensionABC]]):
+        if issubclass(extension, ApplicationExtensionABC) and extension not in self._app_extensions:
+            self._app_extensions.append(extension)
+        elif issubclass(extension, StartupExtensionABC) and extension not in self._startup_extensions:
+            self._startup_extensions.append(extension)
+
+    def _build_startup(self):
+        for ex in self._startup_extensions:
+            extension = ex()
+            extension.configure_configuration(self._configuration, self._environment)
+            extension.configure_services(self._services, self._environment)
 
-    def build(self) -> ApplicationABC:
         if self._startup is not None:
             self._startup.configure_configuration(self._configuration, self._environment)
             self._startup.configure_services(self._services, self._environment)
 
+    def build(self) -> ApplicationABC:
+        self._build_startup()
+
         config = self._configuration
         services = self._services.build_service_provider()
 
-        for ex in self._extensions:
+        for ex in self._app_extensions:
             extension = ex()
             extension.run(config, services)
 
         return self._app(config, services)
 
     async def build_async(self) -> ApplicationABC:
-        if self._startup is not None:
-            await self._startup.configure_configuration(self._configuration, self._environment)
-            await self._startup.configure_services(self._services, self._environment)
+        self._build_startup()
 
         config = self._configuration
         services = self._services.build_service_provider()
 
-        for ex in self._extensions:
+        for ex in self._app_extensions:
             extension = ex()
             await extension.run(config, services)
 
diff --git a/src/cpl_core/application/startup_abc.py b/src/cpl_core/application/startup_abc.py
index 1d1af6d6..1c25dbf7 100644
--- a/src/cpl_core/application/startup_abc.py
+++ b/src/cpl_core/application/startup_abc.py
@@ -10,8 +10,7 @@ class StartupABC(ABC):
     r"""ABC for the startup class"""
 
     @abstractmethod
-    def __init__(self, *args):
-        pass
+    def __init__(self): pass
 
     @abstractmethod
     def configure_configuration(self, config: ConfigurationABC, env: ApplicationEnvironmentABC) -> ConfigurationABC:
diff --git a/src/cpl_core/application/startup_extension_abc.py b/src/cpl_core/application/startup_extension_abc.py
new file mode 100644
index 00000000..5ca19cde
--- /dev/null
+++ b/src/cpl_core/application/startup_extension_abc.py
@@ -0,0 +1,34 @@
+from abc import ABC, abstractmethod
+
+from cpl_core.configuration.configuration_abc import ConfigurationABC
+from cpl_core.dependency_injection.service_collection_abc import ServiceCollectionABC
+from cpl_core.environment.application_environment_abc import ApplicationEnvironmentABC
+
+
+class StartupExtensionABC(ABC):
+    r"""ABC for startup extension classes"""
+
+    @abstractmethod
+    def __init__(self): pass
+
+    @abstractmethod
+    def configure_configuration(self, config: ConfigurationABC, env: ApplicationEnvironmentABC):
+        r"""Creates configuration of application
+
+        Parameter
+        ---------
+            config: :class:`cpl_core.configuration.configuration_abc.ConfigurationABC`
+            env: :class:`cpl_core.environment.application_environment_abc`
+        """
+        pass
+
+    @abstractmethod
+    def configure_services(self, service: ServiceCollectionABC, env: ApplicationEnvironmentABC):
+        r"""Creates service provider
+
+        Parameter
+        ---------
+            services: :class:`cpl_core.dependency_injection.service_collection_abc`
+            env: :class:`cpl_core.environment.application_environment_abc`
+        """
+        pass
diff --git a/src/cpl_core/configuration/__init__.py b/src/cpl_core/configuration/__init__.py
index 0af264af..de358f22 100644
--- a/src/cpl_core/configuration/__init__.py
+++ b/src/cpl_core/configuration/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.configuration'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -27,4 +27,4 @@ from .configuration_variable_name_enum import ConfigurationVariableNameEnum
 from .console_argument import ConsoleArgument
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/console/__init__.py b/src/cpl_core/console/__init__.py
index f5ca0e3c..928c0904 100644
--- a/src/cpl_core/console/__init__.py
+++ b/src/cpl_core/console/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.console'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -27,4 +27,4 @@ from .foreground_color_enum import ForegroundColorEnum
 from .spinner_thread import SpinnerThread
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/cpl_core.json b/src/cpl_core/cpl_core.json
index aaff74a4..e171d838 100644
--- a/src/cpl_core/cpl_core.json
+++ b/src/cpl_core/cpl_core.json
@@ -4,7 +4,7 @@
     "Version": {
       "Major": "2022",
       "Minor": "6",
-      "Micro": "1"
+      "Micro": "2"
     },
     "Author": "Sven Heidemann",
     "AuthorEmail": "sven.heidemann@sh-edraft.de",
diff --git a/src/cpl_core/database/__init__.py b/src/cpl_core/database/__init__.py
index e09cd083..55bc3f3c 100644
--- a/src/cpl_core/database/__init__.py
+++ b/src/cpl_core/database/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.database'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -25,4 +25,4 @@ from .database_settings import DatabaseSettings
 from .table_abc import TableABC
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/database/connection/__init__.py b/src/cpl_core/database/connection/__init__.py
index 7bef8077..accbfaa6 100644
--- a/src/cpl_core/database/connection/__init__.py
+++ b/src/cpl_core/database/connection/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.database.connection'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -24,4 +24,4 @@ from .database_connection import DatabaseConnection
 from .database_connection_abc import DatabaseConnectionABC
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/database/context/__init__.py b/src/cpl_core/database/context/__init__.py
index eab72301..e1684eea 100644
--- a/src/cpl_core/database/context/__init__.py
+++ b/src/cpl_core/database/context/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.database.context'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -24,4 +24,4 @@ from .database_context import DatabaseContext
 from .database_context_abc import DatabaseContextABC
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/dependency_injection/__init__.py b/src/cpl_core/dependency_injection/__init__.py
index 3a9c61f0..044ec621 100644
--- a/src/cpl_core/dependency_injection/__init__.py
+++ b/src/cpl_core/dependency_injection/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.dependency_injection'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -28,4 +28,4 @@ from .service_provider import ServiceProvider
 from .service_provider_abc import ServiceProviderABC
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/environment/__init__.py b/src/cpl_core/environment/__init__.py
index 737a7427..3c96a3bf 100644
--- a/src/cpl_core/environment/__init__.py
+++ b/src/cpl_core/environment/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.environment'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -25,4 +25,4 @@ from .environment_name_enum import EnvironmentNameEnum
 from .application_environment import ApplicationEnvironment
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/logging/__init__.py b/src/cpl_core/logging/__init__.py
index a83095ee..3e341963 100644
--- a/src/cpl_core/logging/__init__.py
+++ b/src/cpl_core/logging/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.logging'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -27,4 +27,4 @@ from .logging_settings import LoggingSettings
 from .logging_settings_name_enum import LoggingSettingsNameEnum
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/mailing/__init__.py b/src/cpl_core/mailing/__init__.py
index 63847174..0eeefc95 100644
--- a/src/cpl_core/mailing/__init__.py
+++ b/src/cpl_core/mailing/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.mailing'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -27,4 +27,4 @@ from .email_client_settings import EMailClientSettings
 from .email_client_settings_name_enum import EMailClientSettingsNameEnum
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/time/__init__.py b/src/cpl_core/time/__init__.py
index 793097bf..4dea9c68 100644
--- a/src/cpl_core/time/__init__.py
+++ b/src/cpl_core/time/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.time'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -24,4 +24,4 @@ from .time_format_settings import TimeFormatSettings
 from .time_format_settings_names_enum import TimeFormatSettingsNamesEnum
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/cpl_core/utils/__init__.py b/src/cpl_core/utils/__init__.py
index 9ca3cc47..5d9e5653 100644
--- a/src/cpl_core/utils/__init__.py
+++ b/src/cpl_core/utils/__init__.py
@@ -15,7 +15,7 @@ __title__ = 'cpl_core.utils'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.6.1'
+__version__ = '2022.6.2'
 
 from collections import namedtuple
 
@@ -25,4 +25,4 @@ from .string import String
 from .pip import Pip
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='6', micro='1')
+version_info = VersionInfo(major='2022', minor='6', micro='2')
diff --git a/src/tests/custom/general/src/general/appsettings.edrafts-pc.json b/src/tests/custom/general/src/general/appsettings.edrafts-pc-ubuntu.json
similarity index 69%
rename from src/tests/custom/general/src/general/appsettings.edrafts-pc.json
rename to src/tests/custom/general/src/general/appsettings.edrafts-pc-ubuntu.json
index afae3437..5d40a040 100644
--- a/src/tests/custom/general/src/general/appsettings.edrafts-pc.json
+++ b/src/tests/custom/general/src/general/appsettings.edrafts-pc-ubuntu.json
@@ -21,9 +21,13 @@
   },
 
   "DatabaseSettings": {
-    "AuthPlugin": "mysql_native_password",
-    "ConnectionString": "mysql+mysqlconnector://sh_cpl:$credentials@localhost/sh_cpl",
-    "Credentials": "MHZhc0Y2bjhKc1VUMWV0Qw==",
-    "Encoding": "utf8mb4"
+    "Host": "localhost",
+    "User": "sh_cpl",
+    "Password": "MHZhc0Y2bjhKc1VUMWV0Qw==",
+    "Database": "sh_cpl",
+    "Charset": "utf8mb4",
+    "UseUnicode": "true",
+    "Buffered": "true",
+    "AuthPlugin": "mysql_native_password"
   }
 }
\ No newline at end of file
diff --git a/src/tests/custom/general/src/general/general.json b/src/tests/custom/general/src/general/general.json
index 6bed03dd..448345cd 100644
--- a/src/tests/custom/general/src/general/general.json
+++ b/src/tests/custom/general/src/general/general.json
@@ -16,9 +16,9 @@
     "LicenseName": "MIT",
     "LicenseDescription": "MIT, see LICENSE for more details.",
     "Dependencies": [
-      "sh_cpl==2021.4.0.post2"
+      "cpl_core==2022.6.1"
     ],
-    "PythonVersion": ">=3.8",
+    "PythonVersion": ">=3.10",
     "PythonPath": {
       "linux": "../../../../../../cpl-env/bin/python3.9",
       "win32": ""
diff --git a/src/tests/custom/general/src/general/main.py b/src/tests/custom/general/src/general/main.py
index 2835d115..67191b28 100644
--- a/src/tests/custom/general/src/general/main.py
+++ b/src/tests/custom/general/src/general/main.py
@@ -1,12 +1,14 @@
 from application import Application
 from cpl_core.application import ApplicationBuilder
-from general.test_extension import TestExtension
+from test_extension import TestExtension
 from startup import Startup
+from test_startup_extension import TestStartupExtension
 
 
 def main():
     app_builder = ApplicationBuilder(Application)
     app_builder.use_startup(Startup)
+    app_builder.use_extension(TestStartupExtension)
     app_builder.use_extension(TestExtension)
     app_builder.build().run()
 
diff --git a/src/tests/custom/general/src/general/test_startup_extension.py b/src/tests/custom/general/src/general/test_startup_extension.py
new file mode 100644
index 00000000..87b179ea
--- /dev/null
+++ b/src/tests/custom/general/src/general/test_startup_extension.py
@@ -0,0 +1,17 @@
+from cpl_core.application import StartupExtensionABC
+from cpl_core.configuration import ConfigurationABC
+from cpl_core.console import Console
+from cpl_core.dependency_injection import ServiceCollectionABC
+from cpl_core.environment import ApplicationEnvironmentABC
+
+
+class TestStartupExtension(StartupExtensionABC):
+
+    def __init__(self):
+        StartupExtensionABC.__init__(self)
+
+    def configure_configuration(self, config: ConfigurationABC, env: ApplicationEnvironmentABC):
+        Console.write_line('config')
+
+    def configure_services(self, services: ServiceCollectionABC, env: ApplicationEnvironmentABC):
+        Console.write_line('services')