How to use gpg4win to encrypt as a .pgp

I am currently using gpg4win version 2.1.0 but I have to encypt a file as .pgp NOT gpg. Can I do this?

i can not say for sure but i think a .gpg and .pgp files are the same apart from the extension.

You may want to sent a test file if this is the reason for .pgp file

PGP is no longer freely available to us little people