There is one more thing, the values in IXPPROF is getting updated when ever i enter values in File-AID screen in DSN field. When I enter a new value in DSN field, my new value is getting added at the last in the existing IXPPROF variable. Let's assume, now the value of IXPPROF is " 1111.1111.1111.1111 2222.2222.2222.2222 3333.3333.3333.3333" when I give my new DSN value, its updated as" 1111.1111.1111.1111 2222.2222.2222.2222 3333.3333.3333.3333 4444.4444.4444.4444".
New DSN is getting concatenated with the existing value. If I do samething using REXX(VPUT) I am getting error when File-AID is trying to access IXPPROF variable.