Error 672 is an error writing the protected output file when using the Shell Method of protection. The extended error will give the reason the file cannot be written.

There is one case of a known bug: if you are shell-protecting a 32-bit Linux binary file with the 64-bit Linux DinkeyAdd, then this error can occur on some occasions, with the extended error 14 (bad address). In this case the solution is to upgrade the Dinkey Pro SDK to version 8.0 or higher.