Hello again, first of all thanks a lot to all the helpful and fast replies for my past queries. It´s really great that all of you share your knowledge, helping other people out!! While still working on the Koha test installation (MySQL is harder than I thought), some people came up with the idea to install the Mandarin M3 core package, free to download at http://www.mlasolutions.com/ . Put as I see it, you have to pay for Z39.50 (right now not important for us), WebOPAC and a whole lot of other things annual fees - so here`s where the company is earning money (which we do not have, and if we had it I would prefer spending it for the donation of a new feature or bugfix in Koha...). Anyone knows a website that compares the two systems (Mandarin and Koha)? Or anyone has worked with the two of them and could tell me which he prefers or about the (dis-)advantages of both of them? Thanks a lot in advance. Cheers Fabian