[DCP-o-matic] Kinothek Stuttgart. Installationsproblem ...

Hello together, sorry for taking your time. Perhaps you can answer me, if you are so kind. Thank you very much. We are using DCP-o-matic for a long time, exclusively till now for making slides without audio tracks. There were no problems. Just till now. After received error messages, we uninstalled the whole program, and we installed it new (site: dcpomatic.com). After downloading and doing the whole procedure (>executing>setup wizard>licence agreement>destination folder C:\Program Files\DCP-o-matic 2>choose components) there is a window with the error message: “Error opening file for writing” (C:\Programfiles\DCP-o-matic2\bin\libintl-8.dll), then the installing process doesn´t continue (Can´t write). What´s wrong? Perhaps there´s a little link for it, otherwise I have to instruct my system supervisor to have a look. Kind regards from Stuttgart. Kinothek Stuttgart. Asangstrasse 15. 70329 Stuttgart. P.S. : Is it the problem to do a registration?