I had roughly the same error. I fixed it by running the iCloud control panel update from apple software update. The problem cropped up after I ran the most recent iTunes update, I've personally been having issues with iTunes updates being finicky since upgrading to Windows 8.1, I've had to download installers rather than running the update directly through Software Update, so it's possible Apple is not fully addressing compatibility issues for newer versions of Windows. Ultimately it seems to be a missing file issue, so any update, installer, or install verification/repair that directly addresses the iCloud files should see and replace the missing file.
Also it looks like Apple is either unaware of this problem or not addressing it at all, there are about a dozen support requests from within the last month all asking this same question regarding iCloud, just with different specific files unable to be found. None of them have answers.
Hopefully this works for you