I'm glad to give you the result of a very long hunt:
Here's a working patch for Inesoft Address Book 3.0
for pocket pc with WM 2003. Enjoy!
:ilove:

May be this patcher works in other constellations.
Try it and report it here!

Unfortunately my enthusiasm was too soon:
After patching the prog can't keep the serial
for longer - sorry! So I'm continuing looking
for a working solution...
:sorry:

thank you bro I'm looking for it for long time thaaaanx

...not 100 % working but much better than the first solution...
:ilove: