Calendar Installation Issue

I try to install calendar server 5.1.1 hf 1.16 on a server which also has msg 5.2 (hf 1.21) and dir (5.1sp3) running on. After finish installating I cannot start the calendar as follow:

C:\Program Files\iPlanet\CalendarServer5\cal\bin>start-cal

Restarting calendar services

Stopping all calendar services

Starting all calendar services

enpd was already started

csnotifyd is not started

Calendar service(s) not started

There are errors in the log:

Start.log:

[10/Jun/2004:19:26:50 +0800] inet01 csstart[860]: General Warning: enpd started but servicebus failed?

Notify.log:

[10/Jun/2004:19:26:55 +0800] inet01 csnotifyd[2380]: General Critical: Failure to contact ENS - exiting

Admin.log:

[10/Jun/2004:18:46:36 +0800] inet01 csadmind[1440]: General Error: caldb: Failure to contact ENS - retrying in 5 seconds

May I know what is the problem?

[948 byte] By [fsm6786] at [2007-11-25 17:13:42]
# 1
Not sure, but you are trying to run two enpd daemon on same server and both are using same port. One enpd from mail server and another enpd from calendar server.
Vgawand at 2007-7-3 10:46:16 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Calendar Server...