for example.

postgres=# select version();
                           version
-------------------------------------------------------------
 PostgreSQL 9.0.2, compiled by Visual C++ build 1500, 64-bit

postgres=# SELECT uuid_generate_v3(uuid_ns_url(), 'http://www.postgresql.org');
           uuid_generate_v3
--------------------------------------
 cf16fe52-3365-3a1f-8572-288d8d2aaa46



Archive:  pg90_uuid_ossp_x64.zip

  inflating: share/contrib/uninstall_uuid-ossp.sql
  inflating: share/contrib/uuid-ossp.sql
  inflating: lib/uuid-ossp.dll

	Name	Last modified	Size	Description
	Parent Directory		-
	pg90_uuid_ossp_x64.zip	2011-02-02 00:30	21K
	uuid.exe	2011-02-01 01:15	24K
	uuid.lib	2011-05-20 23:33	123K
	uuid.lib.md5	2011-05-20 23:40	50