When the program launches, hit the "Scan and save log" button
Press that, and save the log anywhere you like.
Now if you doubleclick the log file.Go to Edit > Select all, then to Edit > copy.
Now you've copied the entire text to the Windows Clipboard
Next, go back to this forum thread, and click "Add Reply".
In an empty area click your RIGHT mouse button, and choose 'Paste' from the context menu.
There's your Hijack This log.