ackup i another copy of your My.exe file. It just don't have to be same name.

Just copy My.ext to My.txt and then when needed (f.ex. My.exe is not usable)
do backward copy My.txt to My.exe.

If txt file is (My.txt) is reserved already, you can use antoher text like extension like My.asc or My.dat or even your own extension like My.text or My.tariq. Just extension that virus is not going to bother because the base of its character.

AT

>Dear Sir,
>
>How to make My.exe file as backup?
>And how and where overwrite my.txt?
>
>Please help again