Assumed your Debian computer has got no Internet access, then and only then, you need to install the packages you downloaded with another computer, using dpkg.
If you search the Internet you easily will find the following link. https://packages.debian.org/wheezy/tshark You need to download and install all the listed "dep" (dependencies), assumed something should be recommended or suggested you don't need to install it. Be aware that even the dependencies have got dependencies, and those dependencies could have dependencies too, so it's better to get the Debian DVDs or to install from the Internet using apt, aptitude or Synaptic a GUI backend for apt. Linux usually doesn't work like Windows. For Windows it at least was usual to download an installer and then to install software by running the installer. For Linux it's more common to use a package management that gets the software you want and it's dependencies from a pool, the repositories. Repositories usually are provided by Internet connection or by DVDs. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/1393453733.647.41.camel@archlinux