Brekeke PBX can't start

1. Brekeke Product Name and Version: Brekeke PBX 2.1.6.6

2. Java version: 1.6.0_39

3. OS type and the version: Windows Server 2008 R2 Std (64-bit)

4. UA (phone), gateway or other hardware/software involved: n/a

5. Your problem: service can't start after installation. Got this error:

The Brekeke PBX service could not be started.

A service specific error occurred: 0.

More help is available by typing NET HELPMSG 3547.

Brekeke PBX 2.1.6.x is the old one which was released 7-8 years ago.
And I heard this version works on only 32bit environment.
I think so, too.

Thank you
Brett.