No, sorry, there will be no self-decrypter for AxCrypt 2. It is too limited in use, and too dangerous.
However, for sharing purposes you can email your customers the download link to the stand alone AxCrypt 2 – no need to install.
For sharing, you should use the key sharing functionality, which enables you to share encrypted file access with anyone just using their email address. No need to distribute any passwords at all.