When i try to install postgresql-9.0.4-1-windows.exe, somewhere at the end of the installation i get an error. "... libintl-8.dll was not found ..."

(same as in this thread: http://forums.enterprisedb.com/posts/list/2526.page direct link: http://forums.enterprisedb.com/posts/downloadAttach/147.page;jsessionid=43B371483530826B5E7EE9151F79279C )
Everything i found concerning this error suggests a permissions issue of the Windows user account, but i was logged in as Administrator. I tried to install the PostgreSQL server on another disk than the default (D:\Apps), together with the data directory. The data directory was created and the concerning dll (libintl-8.dll) was present.
Consequences are that the PostgreSQL Windows service cannot be started.
I am not a Windows expert, so my question is two-fold:
- can an administrator have diminished privileges causing this error?
- can this error have another cause than priviliges, which?
Thanks in advance for any insight