The following bug has been logged online:
Bug reference: 4882
Logged by: Dustin Parker
Email address: dparker@forwardslope.com
PostgreSQL version: 8.3.7
Operating system: Windows XP Professional, SP3
Description: One-click installer crashes with certain service account
passwords
Details:
createuser.exe is invoked by the PostgreSQL one-click installer (maintained
by EnterpriseDB) to create the service account. When using passwords with
percent signs, creatuser.exe crashes inside a formatted-printing routine.
validateuser.exe suffers from this same problem.
Workaround: for every literal percent sign in the desired password, the user
must type two percent signs.