Hello Partha, There are indeed several issues with running Koha on MySQL 5.0 and not just with Windows so I’m posting this on the Koha general list also. First, to log in to Koha you need to make some changes to your MySQL authentication. With the default installation you will get something like:

...

DBI connect('mycomputer:localhost','koha',...) failed: Client does not support authentication protocolrequested by server; consider upgrading MySQL client at C:\usr\koha225\modules/C4/Context.pm line 409.

You can overcome the problem by editing line 1808 of Install.pm from:   print system("$mysqldir/bin/mysql -u$mysqluser -e \"insert into user (Host,User,Password) values ('$hostname','$user',password('$pass'))\" mysql\;");   to:    print system("$mysqldir/bin/mysql -u$mysqluser -e \"insert into user (Host,User,Password) values ('$hostname','$user',OLD_PASSWORD('$pass'))\" mysql\;"); (Thanks to Andrew Koebrick (Andrew.Koebrick@state.mn.us) for that solution.) Or, of course, you can execute the mysql command manually to do the same thing if you don’t use the install script and which you probably didn’t do to install Koha on Windows; anyway, that is what I did. Then there is a new reserved word in MySQL 5 – “return” which is used as a field name in the issues table in Koha. So in any place that is referenced it must be enclosed in single quotes, or back-quotes. I haven’t found an instance of that in the Koha modules or scripts but I’m still looking. It will be an issue if you write any of your own sql scripts for ad-hoc reporting. Finally, there are a couple of modules that must be modified because of changes in the SQL syntax rules with MySQL 5. Theses are in intranet/modules/C4: Search.pm 918c918 <                                                                                    on additionalauthors.biblionumber =biblio.biblionumber ---

                                                                                   on (additionalauthors.biblionumber =biblio.biblionumber) 989c989 <                                                           biblio.biblionumber=bibliosubtitle.biblionumber ---

                                                          (biblio.biblionumber=bibliosubtitle.biblionumber) 1305c1305 <                                                           left join itemtypes on biblioitems.itemtype = itemtypes.itemtype

                                                          left join itemtypes on (biblioitems.itemtype = itemtypes.itemtype) 1494c1494 <                                                                                                from biblio, biblioitems

                                                                                               from biblioitems, biblio 1496,1497c1496,1497 <                                                                                                biblio.biblionumber = bibliosubtitle.biblionumber <                                                                                                left join itemtypes on biblioitems.itemtype=itemtypes.itemtype ---

                                                                                               (biblio.biblionumber = bibliosubtitle.biblionumber)

                                                                                               left join (itemtypes on biblioitems.itemtype=itemtypes.itemtype) SearchMarc.pm 344,346c344,346 <                                                                                    FROM biblio, marc_biblio <                                                                                    LEFT JOIN biblioitems on biblio.biblionumber = biblioitems.biblionumber <                                                                                    LEFT JOIN itemtypes on itemtypes.itemtype=biblioitems.itemtype ---

                                                                                   FROM marc_biblio, biblio

                                                                                   LEFT JOIN biblioitems on (biblio.biblionumber = biblioitems.biblionumber)

                                                                                   LEFT JOIN itemtypes on (itemtypes.itemtype=biblioitems.itemtype) That seems to have taken care of my problems with Koha 2.2.5 and MySQL 5.0. Dana Huff Madrid, Spain dana@sefovan.org ________________________________________ From: koha-win32-bounces+dana=sefovan.org@nongnu.org [mailto:koha-win32-bounces+dana=sefovan.org@nongnu.org] On Behalf Of P. S. Mukhopadhyay Sent: Tuesday, August 29, 2006 8:18 AM To: Koha-win32@nongnu.org Subject: Re: [Koha-win32] need help Hello friends,   Is any one of us using MySQL 5.0 as backend RDBMS for Koha on Windows? I'm running it through MySQL 3.23.58 but facing problems with MySQL 5.x. What is the problem? Pl. suggest.   Partha DLISc, Vidyasagar University