New with Question

[Flashlab]

Press F12 during the emulation to bring up the menu.

[Flashlab]

Just put an adf file in the drop down box and press ok. Then the disk will be visible in Workbench.

If you want to play games on adf disk images chances are big that it's not Amiga DOS compatible and won't work within Workbench/Amikit. You have to boot from the floppy disk. To do this just press the Reset button after you have selected the adf file in the floppy drop down box. This will reset Winuae and boot from floppy.

[Flashlab]

I think you're mixing up some things here.

AmiKit/Winuae is an emulated Amiga. If you want you can just use it as you would normally a computer. So use a browser to download any files you want within Amikit. Just as on a PC. What you do with those files depends on what they actually are; just as on a PC. So archives (zip lha...) need to be extracted, video files played in a player, music etc...

As for adf files, they are images of floppy disks. You can mount them from within Amikit/Winuae in a virtual floppy disk (like Diskimage) or write them to floppy. Writing them to a real floppy can only be done on a real Amiga or a Catweasel card because the PC floppy drive uses a different format. Luckily Winuae offers virtual floppy drives itself. So you use an adf file in Windows and select it in the Winuae config menu in a drive. The emulation will then treat it as if it were a real floppy on the Amiga. A lot of adf files are images of floppies that are not AmigaDOS compatible. That means that they are not useable in Workbench (the OS desktop) but will work if you boot from the disk.

[Flashlab]

First, adf files are not archives. They are images and don't need unpacking. It really depends on what is on the image how you should use it. A lot of adf files (especially games) won't work in a normal DOS environment. These are non-DOS filesystem floppies. Like I said you need to boot the virtual Amiga from these disks to use them. In that case only using them from the Winuae config menu would work.

If you are a Amiga newbie and don't really get the differences in all different aspects of emulation but do want to learn it I suggest you just use Winuae and start with a simple WB3.1 install to learn about how things work on an Amiga. Amikit comes with a lot of different patches to AmigaOS and that can confuse people. IMHO it's all a bit too much and I don't like using it.