Did you include VFPENCRYPTION71.FLL into the project?
To see all the functions in VFPENCRYPTION71.FLL

SET LIBRARY TO VFPENCRYPTION71.FLL 
DISPLAY STATUS

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>I am using VFPENCRYPTION71.FLL library in a small program. I made a small change in the program and when recompiling and rebuilding I get error/warning that "HASH" is missing. Yet when I run the application I get no error on the line of code using Hash() function. Does it mean that Hash() function is one of the functions in VFPENCRYPTIONS71.FLL? I wanted to be sure that I am not missing something.