It's not just a change of association is it?
Try changing it back to Ulead in Tools\Folder Options\File Types. Or right click the file and choose Open With\Choose Program, and check the box to Always use this program.
What is ransomware and how do I protect my PC from WannaCry?
What I learned from my mentor, Oscar-winning VFX supervisor Phil Tippett
Siri vs Google Assistant
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