The FoxPro 2.6 version of JKEY is not compatible with Visual FoxPro. There is a FoxPro 5.0 version of JKEY (which also works with 6.0).

>I got a program written in Fox 2.6 and is utilizing the JKEY.FLL. However, when migrated to VFP5 it there is call is given on =jKeyInit("U", "", "*") after setting the procedure call to JKEY.FLL
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>in VFP5
>SET PROCEDURE To JKEY additve
>=jKeyInit("U", "", "*")
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>
>IT error out on the JKEYINIT call.
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>Any Idea???/