The default "Compress Using…" in Quicksilver has issues dealing with multiple files.
I compress archives using the open-source, cross-platform, powerful and versatile 7za: http://web.me.com/krmathis/applications/p7zip%209.04.dmg (official website: http://www.7-zip.org/) I wrote a script to zip my files/folder with password and move them to my Dropbox(Private) folder. Then I modified it to work with any folder instead of Dropbox folder. Then I added more scripts for "completeness". Where to Save: ~/Library/Application Support/Quicksilver/Actions Usage: For compressing more than one file/folder at once: If you want to compress more than one file/folder, keep adding them by using the "comma" key and Cmd+X key. Remember the last item should be the destination folder. Press Tab. Select this script and hit return. These scripts will compress individual files and folders and create as many different archives. The first script is for compressing files/folders without password and the second with password. http://dl.getdropbox.com/u/872430/Quicksilver%20Scripts/Zip%20(Single)%20no%20pass.scpt, http://dl.getdropbox.com/u/872430/Quicksilver%20Scripts/Zip%20(Single)%20pass.scpt, These scripts will compress all the files/folders into one archive. The first script is for compressing files/folders without password and the second with password. http://dl.getdropbox.com/u/872430/Quicksilver%20Scripts/Zip%20(Multi)%20no%20pass.scpt, http://dl.getdropbox.com/u/872430/Quicksilver%20Scripts/Zip%20(Multi)%20pass.scpt Suggestions: It is advisable that you test the scripts on your test files and folders. After testing them, save them as run-only, so that no one else can see your password (not even you). :) Though, I could have used many other other compressing utilities which are present by default in Mac OS, I choose 7za because of its versatility. You can easily change the compression format by changing "-tzip" to -t7z or -tiso. Ofcourse, I could have modified the scripts to give you a chance to enter the format yourself but I don't know if it is necessary to switch formats frequently.
