it's not a decryption error, it's a run time error.
he can't run it because he doesn't have VCredist, or the correct version. (older, or 32 bit instead of 64, or 64 instead of 32, etc.)
though, he said he tried to put the required files in the folder, but still didn't work. Maybe he still miss some other VCredist's files. the easiest is to reinstall it.