Well, just play, and then, in the character screen, select "export". It will create a .chr file that other people can use to play.
If you wanna make special characters (with special abilities, or special paperdolls, like elminster or drizzt or a skeleton or something), you should get
Gate keeper, you have it in the
Ironworks
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"Iīve been captured... and I donīt care" -Ertai, Captive of the Blinding Angel