From 0f558738d054f2e3398acad88a8696222b51cc67 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= <alex@alexrp.com>
Date: Thu, 24 Aug 2023 19:26:50 +0200
Subject: [PATCH] Document TERA.exe -> Tl.exe command 0x401.

Part of #36.
---
 doc/game/launcher-client-protocol.md | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/doc/game/launcher-client-protocol.md b/doc/game/launcher-client-protocol.md
index 7eb189e..933c30a 100644
--- a/doc/game/launcher-client-protocol.md
+++ b/doc/game/launcher-client-protocol.md
@@ -704,9 +704,16 @@ struct LauncherAntiCheatStartedNotification
 
 `error` contains the error code from the anti-cheat module.
 
-### Unknown Command 1025 (`0x401`)
+### Open Customer Support Command (`0x401`)
 
-The exact purpose of this message is currently unknown.
+`TERA.exe` asks `Tl.exe` to open the customer support website in the default Web
+browser.
+
+```cpp
+struct LauncherOpenCustomerSupportCommand
+{
+};
+```
 
 ### Unknown Command 1027 (`0x403`)