The following bug has been logged online:
Bug reference: 6033
Logged by: Eric Kolotyluk
Email address: eric(dot)kolotyluk(at)gmail(dot)com
PostgreSQL version: 9.0.4-1 x86
Operating system: Windows XP
Description: Nonstandard Install Directory Fails
Details:
If I try to run the installer on Windows XP with the install directory other
than the standard place (c:\Program Files\PostgreSQL\9.0), the installation
has errors in it.
If I use the default parameters the installation is fine.
Using the same installer on Windows 7 x86, it installs correctly if I
install it in some other directory.