iam using to postmessage api with vbkeyback to erase the charactes typed and post some other character in my local language software.

PostMessage(wndHndl, WM_CHAR, Asc(Chr(8)), Keybrd_Delay)


the problem is i can't send backspace to all windows applications. some applications like excel and coreldraw didnot take backspace key with postmessage api.

how can i erase the characters i typed.......

please helpme