My old key revocation :

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: 2.6
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=U+IQ
-----END PGP PUBLIC KEY BLOCK-----

And here is my new key, be sure to include it in your PGP pubring and check
PPLX.EXE against the signature in PPLX.ASC!

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: 2.6

mQCNAi/8EHAAAAEEAKmS4/mymaVeyczvrKdr4sSdj8vKXHWz7SOK5wcI3S/bkIzk
cF7b0/V35uP5ItStUxNsU54zRDS9snl3MH4/9wgcpky/GEGVAeuC0suybpBOLiJP
JKUkffhk2jlB7qFB8+dQhMjBc1iUST8rDSuID7t7ChqdY2xHihxaVwFGSpdVAAUR
tB5sb25lLnJ1bm5lckBudXhlcy5mcm11Zy5mci5uZXS0C0xvbmUgUnVubmVy
=sqjP
-----END PGP PUBLIC KEY BLOCK-----

To revoke my old key and insert my new one in the same time, do the following :

- Move to your PGP directory
- Type : PGP -ka ...PATH...\PGPKEY.ASC where ...PATH... is the path of the
  extracted PPLX archive.

Thats all...