The following bug has been logged online:
Bug reference: 4959
Logged by:
Email address: wader2(at)jcom(dot)home(dot)ne(dot)jp
PostgreSQL version: 8.4.0
Operating system: Windows
Description: unable to install/start service
Details:
If service account password contains '>',
installer fails to install service.
(the password was made by 8.3.x installer...)