Hartmut,
You are running into an issue what we faced, although according to Postgres development folks they can not reproduce.
To work around the issue we had to do the following:
do not use the Post installer to create tablespaces, precreate them on Postgres, before you run the post installer.
You are getting the error b/c the code submitted to postgres to create the tablespaces is not successful, this is only an issue on win 2008 R2.
1. create the folder that will serve the tablespace
- grant os user group "users" full access to the folder
- to avoid other issues related to increased security on Win2008 R2 you may have to give the "users" group full access on the Data folder level.
2. create the tablespace in postgres
3. reference the precreated tablespace in the postinstaller
Some other things to try:
- turn off UAC
- run the postinstaller as Admin
Sincerely,
Kasia
