Thanks Shasur,
Actually my requirements are a bit more than this. Will try & list them down:
1) For particular range of cells, user should be able to input only value provided in the drop down list, and
2) User should not be able to copy (^C), cut (^X), paste (^V), fill (^D) either by using shortcut keys or toolbars or right click menus.
3) User should not be able to access the
VB code so that macros cannot be altered.
4) All the above functions should be applicable to the required workbook / worksheet only.
5) How to undo all the able commands.
..... A bit lenthy one.
Once again thanks for yr response.... Hope to hear soon from u.