Export/Import existing database from Unix to Windows 8.0-beta2-dev3

Hi,

 

I have recently downloaded, PostgreSql 8.0-beta2-dev3 windows version. I am a newbie to postgresql, i have one question, How can i import or export the existing postgresql database running under unix flavour to windows based postgresql (8.0-beta2-dev3). Is there any facility under the new windows version ?

 

It is highly appreciated, if any one could show some light on this.

 

thanks,

kuru