Hello, there are one or two bugs in xmlreg.pp that can cause crashes. I am talking about the xmlreg.pp in fpcsrc\packages\fcl-registry\src. Around line 355, it is not verified whether Node.FirstChild is nil. Around line 720, the function does not return any value. I have copied the file into my project directory and made some fixes. Luckily, the fpc compiler now uses my version rather than the default version. I don't know how to submit the fixes so I've put the updated file here: http://www.superflexible.com/xmlreg.pp Cheers, Tobias Giesen