>>>Can somebody advs me how to make Ins/Overwrite key functional in MaskEdit Control..
>>>
>>>TIA....
>>
>>Depending on your mask (for example something like ?#?), sometime it won't works!
>
>I'm using following mask ## #### ####
>
>Pls advs if there is any way to solve this or simulate same thing on a normal textbox..

If you want to simulate it, you will need to write all the code that validate the position where you are (is it a blank or a placeholder), if the character is valid, ... In conclusion a lot of work.