In safe mode, I can't disable dde neither. The only difference in safe mode was that PSP could find the path to the files (not always, but often) and open them.
Files properties have a new thing which they had not before. It says that they come from another computer and are blocked for security reasons. I guess some thing in security system was changed by Infium. Kaspersky did not block them.
What could be the reasons that an .exe file stops to work suddenly? (process is show, but does not open)