First of all: Thanks to all who contributed to this issue. There are many helpful and interesting comments. I am going to reply to Christian's first question: How did TEMP end up with this value? I have just scanned my installation protocol which says, that I made a registry backup of the current user enviroment right after the basic system installation. After that backup I restored the previously saved Windows XP Pro x86 DE user environment. This step changed the TEMP setting from its default value to "C:\Users\ADMINI~1\LOKALE~1\Temp" (8.3 notation), which corresponds to "C:\Users\Administrator\Lokale Einstellungen\Temp". I unintentionally changed the TEMP variable from its default setting. I should have checked whether the TEMP values has changed or not - but I did not. Newertheless, I would not have expected any problems from a changed TEMP setting even if it contains links. >From my backup of the original user environment [HKEY_CURRENT_USER\Environment] I can reconstruct the default value of TEMP: TEMP=%USERPROFILE%\AppData\Local\Temp which resolves to TEMP=C:\Users\Administrator\AppData\Local\Temp The default TEMP setting does not contain any links. As a link is obviously causing the installer to fail, it will probably finish without problems when using either the default TEMP setting or any non-default setting that does not contain any links. Before I am going to install with the default TEMP setting I am doing the desired tests for the BitRock Support and wait for the answer. I will keep the list informed about any new results. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general