Hi
First I have to give credit where credit is due - there is a user by the name of duffpaddy (David Lipman)
FileError_22001 Fix
Follow his instructions and life becomes good. I just recovered my files by using the dr web tool and am in the process of running the malware search and destroy tool from malwarebytes.org

excerpt from the forum posted by duffpaddy
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It is a case of Cryptovirology and DrWeb calls it "Trojan.Encoder.33" and has a
tool for
decryption.
ftp://ftp.drweb.com/pub/drweb/windows/te33decrypt.exe

10% of the files can be decrypted based upon a key in the Registry.
The other 90% can be decrypted through a predictable key.


--
Dave
Generic Trojan / Adware Infestation Removal Procedures
Multi-AV - Multi-AV Scanning Tool - PCtipp.ch - Downloads

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Good Luck
Marc