>>after creating exe and running... i got message... like
>>" Feature is not available... "
>>
>There's probably a SUSPEND, SET STEP ON, or some such debugging code somewhere...

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Here is a bigger list from MSDN:
If your application includes the following commands, it will return the error “Feature not available.” Although you cannot include commands that create or modify menus, forms, or queries, you can run compiled menu, form, or query programs in your application.

Unavailable commands

BUILD APP          MODIFY FORM 
BUILD EXE          MODIFY MENU 
BUILD PROJECT      MODIFY PROCEDURE 
COMPILE            MODIFY PROJECT 
CREATE FORM        MODIFY QUERY 
CREATE MENU        MODIFY SCREEN 
CREATE QUERY       MODIFY STRUCTURE 
CREATE SCREEN      MODIFY VIEW 
CREATE VIEW        SUSPEND 
MODIFY CONNECTION  SET STEP 
MODIFY DATABASE