Hmail Server Instalation on Plesk8.1 Windows server

[Kanagaraj]

Hi,
We need some information in install hmail server in our Plesk8.1 windows server, now we have mailenable mail server and horde webmail client. how can we install to hmail server 4.2 in our windows server.

Second if we create domain in plesk cp that domain will work in hmail server or we create in hmail server admin panel.

Now we have some of domain in that server and some mail accounts working, if we change to hmail server all the old mail accounts working or not.

Please clarify,
Thanks
Kanagaraj