/ENCRYPT
/ENCRYPT, Key,
    Fname, Ext
Controls encryption of command input. 
KeyEncryption key used to encrypt the data (32-character maximum). A character parameter may be used. If the key is unspecified, encryption is turned off.
FnameName of file (including directory path) where the encrypted commands are written (248-character maximum for both file name and directory). An unspecified directory path defaults to the working directory; in this case, you can use all 248 characters for the file name.
ExtFile name extension (eight-character maximum).
Notes
This command opens the encrypted file specified by Fname and
    Ext for writing encrypted input commands. 
Issuing this command results in a new file that overwrites any data in an existing file by
   the same name. When the encrypted file is written, the first line in the file is
    /DECRYPT,PASSWORD,OPENSSL and the last line is
    /DECRYPT. 
See Encrypting Command Input and Other Data in the Ansys Parametric Design Language Guide for more information about using /ENCRYPT and performing encryption and decryption.