All files copying mandatory in updates?

Hii Wyatt,First of all i am so badly impressed with wyBuild. I feel like i am just addicted to it. Its great and awesome.Assuming, i am releasing Version 1.2 and i have only 1 out 5 total files changed. for ex. in version 1.1 the files distributed are [app.exe, blah.dll, something.cab, client.xx, something.cfg]and out of those only app.exe is changed for new version,is it okay if i only copy app.exe in 1.2 folder? or do i need to drag and drop all the files into wyBuild?what are benefits of doing in this method? and also back-points too if its not recombination.

Regards,Herit Shah

First of all i am so badly impressed with wyBuild. I feel like i am just addicted to it. Its great and awesome.

Thanks, that means a lot.

or do i need to drag and drop all the files into wyBuild?what are benefits of doing in this method?

You'd be best off if you dragged and dropped all files from all versions into wyBuild. Let wyBUild do the comparison to see what files to delete, what files to add, and which files to patch.