Newbie: Commandline still prompting for passphrase?

[Mark Brownlee]

echo MyPasword1432!|"C:\Program Files\GNU\GnuPG\gpg2.exe" --passphrase-fd 
0 --homedir "C:\Users\Mark\AppData\Roaming\gnupg" -r "ABC Limited" -o 
"C:\Users\Mark\Desktop\test-sign-done.txt.gpg" -e --sign 
"C:\Users\Mark\Desktop\test-sign.txt"

Does anyone know why the above still prompts me for a passphrase (I am 
trying to bypass it)?