Zip a directory folder with password

Question

Hello Team !,

       From yesterday itself i was strucked to do this task. Actually the task is I have to zip a folder (the folder which contains multiple document file) with password protection. but i tried various part including thirdparty tool sevenzip,dotnetzip,Isharp but none of the above is not suitable for my requirement so friends please suggest me the best idea to solve this

 

Thanks in Advance