diff --git a/LEGO1/lego/legoomni/include/registrationbook.h b/LEGO1/lego/legoomni/include/registrationbook.h
index d47dbf28..0864aed4 100644
--- a/LEGO1/lego/legoomni/include/registrationbook.h
+++ b/LEGO1/lego/legoomni/include/registrationbook.h
@@ -33,6 +33,20 @@ class RegistrationBook : public LegoWorld {
 
 	// SYNTHETIC: LEGO1 0x10076f30
 	// RegistrationBook::`scalar deleting destructor'
+private:
+	undefined4 m_unk0xf8;
+	undefined m_unk0xfc;
+	undefined2 m_unk0x28e;
+	undefined4 m_unk0x280;
+	undefined4 m_unk0x284;
+	undefined4 m_unk0x288;
+	undefined2 m_unk0x28c;
+	undefined2 m_unk0x2b8;
+	undefined4 m_unk0x2bc;
+	undefined m_unk0x2c1;
+	undefined4 m_unk0x2c4;
+	undefined4 m_unk0x2c8;
+	undefined4 m_unk0x2cc;
 };
 
 #endif // REGISTRATIONBOOK_H
diff --git a/LEGO1/lego/legoomni/src/infocenter/registrationbook.cpp b/LEGO1/lego/legoomni/src/infocenter/registrationbook.cpp
index a2ee09b3..80d5c404 100644
--- a/LEGO1/lego/legoomni/src/infocenter/registrationbook.cpp
+++ b/LEGO1/lego/legoomni/src/infocenter/registrationbook.cpp
@@ -2,10 +2,26 @@
 
 #include "legoomni.h"
 
+#include "mxnotificationmanager.h"
+
 // STUB: LEGO1 0x10076d20
 RegistrationBook::RegistrationBook()
 {
-	// TODO
+	this->m_unk0xf8 = 0x80000000;
+	this->m_unk0xfc = 1;
+	this->m_unk0x28e = 0;
+	this->m_unk0x280 = -1;
+	this->m_unk0x284 = -1;
+	this->m_unk0x288 = -1;
+	this->m_unk0x28c = -1;
+	this->m_unk0x2b8 = 0;
+	this->m_unk0x2bc = 0;
+	this->m_unk0x2c1 = 0;
+	this->m_unk0x2c4 = 0;
+	this->m_unk0x2c8 = 0;
+	this->m_unk0x2cc = 0;
+
+	NotificationManager()->Register(this);
 }
 
 // STUB: LEGO1 0x10076f50