>(1) DO bism1 && bism1 is a prg and this prg work fine separately
>(2) READ EVENTS
>(3) this.parent.click ()
>(4) do form fwtn30 && {{this form does not work separately}}
>(5) INTO cursor abcd
>
>Note about point (4)
>
>The fatel error message window appears when I try to load
>do form fwtn30
>
>This happens only in Exe. No problem outside exe.

Are you using the same data when running the exe and in IDE? May be that the select statement (5) pulls from a table with a bad index. Bad index is among the possible causes of a C0000005. If the tables are the same, then... a wild guess: add or move a line in the form fwtn30's code, recompile the form and rebuild the exe. Sometimes it's just some of those weird things that keep killing your exe until you change something in the code, and then all of a sudden it starts working.

I've had my share of such cases where I didn't know the cause, much less why a fix worked.