need something important .clent sided

i am currently working on my client , but how ever i will like to talk about fresh project so nobody get confuse.

my goal

1: command1_click create appath xxx.txt that should contain date and time when the exe should be usable , tampering pc time etc should not allow exe to open .


2: simle example request to know how to lock exe by date , plz i know you gona say do from server but i request to do like this because i want to please thanks.

please its very important to me 1 example test project please guys

like have a project with 2 command button
text1 is date and time


and command1 execute text1 date and time + close exe not open till date is over:(
and the xxxxx.txt in appath showing date and time , this i will t.c of make it hidden etc
datamiser ,:(jim,:(doogle:(rider:(boucher:(