Rule #1 - You must wait longer than 1 hour before posting same question again. Mahesh_Pawar wrote: ...then it takes only 65 KB and remaining data is neglected..... Are you sure you are not using a regular edit control? It maxes out at 64KB on Win9x machines. Otherwise, if you have sent the control a EM_EXLIMITTEXT message with lParam as 0, the control will default to 64KB. "Love people and use things, not love things and use people." - Unknown "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne