Create installation.md

Author: zcube

docs/Installation/installation.md

@@ -0,0 +1,55 @@
+# Installation Guide
+
+## Download ACTWebSocket Plugin
+
+Download ACTWebSocket Plugin and unzip. 
+
+If you use windows defender, you may need to unblock files. See this [link](https://blogs.msdn.microsoft.com/delay/p/unblockingdownloadedfile/)
+
+
+## Install ACTWebSocket Plugin To Advanced Combat Tracker v3
+
+![N|Solid](https://raw.githubusercontent.com/ZCube/ACTWebSocketOverlay/master/docs/Installation/0.png)
+
+Add "ACTWebSocket.DLL" to Advanced Combat Tracker.
+
+## Turn on ACTWebSocket
+
+![N|Solid](https://raw.githubusercontent.com/ZCube/ACTWebSocketOverlay/master/docs/Installation/2.png)
+
+* Recommended Settings
+
+    * Auto Server Start. Check
+    * Server Address 127.0.0.1
+    * Server Port 10501
+    * Use MiniParse Only
+    * And turn on.
+
+## Install Overlay to app
+
+![N|Solid](https://raw.githubusercontent.com/ZCube/ACTWebSocketOverlay/master/docs/Installation/3.png)
+
+* Recommended Settings
+
+    * Select type (DX9 32bit/64bit, DX11 32bit/64bit)
+    * Select executable file (*.exe)
+    * Install
+    * It shows installed version
+    
+# TroubleShooting
+
+## FFXIV_ACT_Plugin throws a lot of error messages problem.
+
+It throws a lot of error messages like the following.
+
+MEMORY ERROR: 254|2017-05-26T00:14:01.8760000+09:00|Bad Packet header: 81012E81012E81012E81012E81012E81012E81012E81012E
+MEMORY ERROR: 254|2017-05-26T00:14:01.8760000+09:00|Correcting network buffer, Discarding [30] of [30] bytes from Connection 127.0.0.1:10501 -> 127.0.0.1:4234: 81012E81012E81012E81012E81012E81012E81012E81012E81012E81012E
+
+1. Local IP Address setting in FFXIV Settings. 
+
+    * Choose Local IP other than 127.0.0.1 where the ACT will work.
+    * ACTWebsocket will works on 127.0.0.1
+
+2. Use [WinPCAP](https://www.winpcap.org/)
+
+    * WinPCAP is a windows packet capture library that FFXIV_ACT_Plugin supported.