Is it required to install JRE on win7 before installing PBX?

1. Brekeke Product Name and version:
PBX 2.4.9.0
PAL SDK 2.4.4.11

2. Java version:

3. OS type and the version:
Win 7

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

5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/ ... terns.html :

6. Your problem:
I am installing PBX and PAL SDK.
Installation asks about JRE.
Is it required to install JRE seperately before installing PBX and SDK?
If yes, then which version is good for Windows 7?

Thanks in advance.

here is doc for installation http://www.brekeke-sip.com/download/bpb ... sic_en.pdf
require Sun Version 1.6 or later (32bit)