diff --git a/README.md b/README.md
index 60447e3..5073c72 100644
--- a/README.md
+++ b/README.md
@@ -1,22 +1,76 @@
 CONTACT IMPORTER AND EXPORTER:
 ===
 
-Building the contact importer plugin for Zarafa WebApp:
+## Building the contact importer plugin from source:
 
+### Dependencies
+ - Kopano WebApp Source Code (https://stash.kopano.io/projects/KW/repos/kopano-webapp/browse)
+ - PHP >= 5 (7 or higher recommended)
+ - composer (https://getcomposer.org/)
+ - JDK 1.8 (http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html)
+ - ant (http://ant.apache.org/)
+
+Add JAVA_HOME (e.g. C:\Program Files\Java\jdk1.8.0_161) to your path. Also add Ant, Composer, PHP and Java to the global PATH variable!
+
+### Compiling the plugin
+Unzip (or use git clone) the sourcecode of Kopano WebApp to a new directory. In this README we call the source folder of WebApp "kopano-webapp-source".
+
+Then generate the WebApp build utils:
 ```
-cd /zarafa/webapp/
+cd kopano-webapp-source
 ant tools
-cd /zarafa/webapp/plugins/
+```
+
+Next clone the plugin to the WebApp plugin directory:
+```
+cd kopano-webapp-source\plugins
 git clone https://git.sprinternet.at/zarafa_webapp/contactimporter.git
-cd contactimporter
+```
+
+Now lets build the plugin:
+```
+cd kopano-webapp-source\plugins\contactimporter\php
+composer install
+cd kopano-webapp-source\plugins\contactimporter
 ant deploy
 ```
 
-Make sure to run "composer install" in the php directory!
+The compiled plugin is saved to `kopano-webapp-source\deploy\plugins\contactimporter`.
 
-### Usage
-Rightclick a contactfolder or contact entry to export it as vCard.
+## Installing the plugin
 
-Rightclick a contactfolder to import a vCard.
+### From compiled source
+Copy the whole folder "contactimporter" to your production WebApp (`kopano-webapp-production\plugins\contactimporter`)
 
-Rightclick a vCard attachment to import it.
+For example:
+```
+cp -r kopano-webapp-source\deploy\plugins\contactimporter kopano-webapp-production\plugins\
+```
+
+### From precompiled download
+Download the newest release from https://git.sprinternet.at/zarafa_webapp/contactimporter/tree/master/DIST.
+
+Unzip the downloaded file and copy the plugin folder to your production WebApp.
+
+For example:
+```
+cp -r Downloads\contactimporter kopano-webapp-production\plugins\
+```
+
+## Configuration
+Edit the config.php file in the plugin root path to fit your needs.
+
+Available configuration values:
+
+| Configuration Value        | Type           | Default  | Desctription |
+| ------------- |:-------------:| ----- | ----- |
+| PLUGIN_CONTACTIMPORTER_USER_DEFAULT_ENABLE     | boolean | false | Set to true to enable the plugin for all users |
+| PLUGIN_CONTACTIMPORTER_DEFAULT     | string | "Kontakte" | Default contact folder name (might be "Contacts" on english installations) |
+| PLUGIN_CONTACTIMPORTER_TMP_UPLOAD     | string | "/var/lib/kopano-webapp/tmp/" | Temporary path to store uploaded v-Cards |
+
+
+## Usage
+
+The plugin add context menu entries to contact folders.
+
+![Plugin Context Menus](https://git.sprinternet.at/zarafa_webapp/contactimporter/raw/master/usage.png "Kopano Webapp Context Menu")
\ No newline at end of file