i got the solution. if we set the attribute of the desired file to
system
eg setattr "D:\usman.exe", vbsystem
by doing this the file get the attribute of system file and they i remain safe
form certain type viruses.
I used solid SFX in Winrar to stored my different files. i thought i will remain safe form certain viruses. but putting my data USB in other computer my rar compressed file aslo get infected and showed message "Create a fresh copy of the file" " the file is ......." like this .
But i m still looking for a software that compress my files and the main and compressed file dont get infrcted. As u know most of the viruses infects exe
and Dll files.