AFAIR XML specification denies spaces inside tag or attribute name. So this is not a U++ bug, it is an XML feature
Hello Mindtraveller
The first case is spaces in .exe file name. This name is xmlized by Xmlize internally, without programming it. The programmer that uses Xmlize has no chance about it.
About the second case, StoreAsXMLFile() works but LoadFromXML() fails. It would be good if StoreAsXMLFile() would detect it.