a friend of us who asked to remain explicitly unnamed sent us this excellent work (if you respect him do not report your guess), an X-Prot V2 Unprotector for EXE and DLLs.
Has some limitations as stated into the readme file, but works for most cases.
A really hard work we are happy to share from our site.
Do no complain us for not working on some targets, just try to figure you out why and read the limitations.