Very interesting report. Did you install Windows yourself on this system? If so, that might explain the failure; but I'd still like to fix the issue for all users. DoubleSpace does support custom Windows installations - but these might pose more edge cases that haven't all been addressed yet; as illustrated by your post.
May it be possible to get remote TeamViewer access to your computer at some point within the next couple of weeks (or a month)? This would also help me obtain more information about what is going on.
As a workaround, you can create a bootable USB stick - to which you copy all of the files in the DoubleSpace folder - and run DoubleSpace from there after manually booting your computer from the bootable USB stick. DoubleSpace automates this process fully, as long as it can locate your recovery partition, of course.
Thanks in advance for your help in solving this edge case for all customers, and of course for reporting the issue.
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