BUG #4886: Password Crash

The following bug has been logged online:

Bug reference: 4886
Logged by: Justin
Email address: justin(dot)brock(at)navy(dot)mil
PostgreSQL version: 8.3.7
Operating system: Windows XP
Description: Password Crash
Details:

The % sign included in the password field crashes createuser.exe and
prevents setup to be completed. Below is the error in the
bitrock_installer.log file. While inserting password for the postgres
account, the Windows debug screen would come up and say create~1.exe has
failed and the next window would say that the service account postgres could
not be created. Installing 8.3.5 allowed me to pass through the error with
both createuser.exe failing and validateuser.exe failing.

Script stderr:

Executing C:\Documents and Settings\Administrator\Local
Settings\Temp\postgresql_installer\createuser.exe
Script exit code: SIGABRT

Script output:
child killed: SIGABRT

Error running C:\Documents and Settings\Administrator\Local
Settings\Temp\postgresql_installer\createuser.exe . "postgres"
"PASSWORD" : child killed: SIGABRT
Error running C:\Documents and Settings\Administrator\Local
Settings\Temp\postgresql_installer\createuser.exe . "postgres"
"PASSWORD" : child killed: SIGABRT
Executing C:\Documents and Settings\Administrator\Local
Settings\Temp\postgresql_installer\createuser.exe
Script exit code: SIGABRT