Just a quick coupple of links if you ever have to debug MS-Exchange OAB OAL replication issues;
http://code.msdn.microsoft.com/oabinteg/Release/ProjectReleases.aspx?ReleaseId=726
If your native tongue is Danish, and you are somewhat a newbee to securing your pc, then this page may be a good place to begin – it will give you the option to have your pc scanned and offer general suggestions to improving your online security.