Dear Rob and All I am testing Koha 2.2.7 from last two months. I have fixed so many things with the help, cooperation and support of Koha community and specially Rob. I installed the new release of Koha 227 (http://koha.rwjr.com/Koha2.2.7-W32-R3.EXE) with Perl Modules Release 5 for Koha (http://koha.rwjr.com/Perl5.8.xModulesForKohaR5.EXE). I have also installed the Patch (http://koha.rwjr.com/PerlModulesPatchR1.EXE). Now Koha is working fine, but Z39.50 search is not working properly. Is there any problem with my installation or this option is not available for Win 32 (I have read somewhere for older versions of Koha, z39.50 search is not available, I think in Rob Weir help file). Can someone guide me in this regard? when i search through z39.50 button the following error is shown: Server error! The server encountered an internal error and was unable to complete your request. Error message: Premature end of script headers: search.pl If you think this is a server error, please contact the webmaster. Error 500 intranet 03/03/07 11:54:06 Apache/2.0.59 (Win32) and in intranet-error_log, entry is as under: [Sat Mar 03 11:54:07 2007] [error] [client 127.0.0.1] Premature end of script headers: search.pl, referer: http://intranet/cgi-bin/koha/acqui.simple/addbiblio.pl [Sat Mar 03 11:54:07 2007] [error] [client 127.0.0.1] Can't load 'C:/usr/site/lib/auto/Net/Z3950/ZOOM/ZOOM.dll' for module Net::Z3950::ZOOM: load_file:The specified procedure could not be found at C:/usr/site/lib/XSLoader.pm line 70., referer: http://intranet/cgi-bin/koha/acqui.simple/addbiblio.pl [Sat Mar 03 11:54:07 2007] [error] [client 127.0.0.1] at C:/usr/site/lib/Net/Z3950/ZOOM.pm line 12, referer: http://intranet/cgi-bin/koha/acqui.simple/addbiblio.pl [Sat Mar 03 11:54:07 2007] [error] [client 127.0.0.1] Compilation failed in require at C:/usr/site/lib/ZOOM.pm line 6., referer: http://intranet/cgi-bin/koha/acqui.simple/addbiblio.pl [Sat Mar 03 11:54:07 2007] [error] [client 127.0.0.1] BEGIN failed--compilation aborted at C:/usr/site/lib/ZOOM.pm line 6., referer: http://intranet/cgi-bin/koha/acqui.simple/addbiblio.pl [Sat Mar 03 11:54:07 2007] [error] [client 127.0.0.1] Compilation failed in require at C:/usr/koha227/intranet/cgi-bin/koha/z3950/search.pl line 30., referer: http://intranet/cgi-bin/koha/acqui.simple/addbiblio.pl [Sat Mar 03 11:54:07 2007] [error] [client 127.0.0.1] BEGIN failed--compilation aborted at C:/usr/koha227/intranet/cgi-bin/koha/z3950/search.pl line 30., referer: http://intranet/cgi-bin/koha/acqui.simple/addbiblio.pl Please help me in this regard. Ata ur Rehman