Generally speaking, Zip or Rar files that we download from Internet need to be decompressed before we can actually use them. This decompression process goes like this: First, you need double-click this archive, then an associated decompresses will open its file list in a window. Now, if you double-click one of the files on the list, it seems that the file is opened automatically, in the fact, all the files on the list have been decompressed to a temp folder in advance before it's opened. This whole decompression process usually takes a lot of time, especially for an age that archives go larger and larger.
For instance, decompressing an archive larger than 1G often takes you 10 minutes or more depending on your computer's capability, but now if you have got WinMount at hand, you don't need to tolerate the boring moment spent on decompressing. Just right-click on the archive, select "Mount to a new drive " menu item, a few seconds later, the operating system will notify you that a new device has been found and a new drive is created and ready to work. If you open it, you can see that all the files inside the archive are ready for your use.
Some users reported that WinMount takes up too much memory, our answer to it is, this issue is not about winmount itself but your improper understanding. When a ZIP or RAR file is mounted on a virtual drive, WinMount just consumes a little bit memory, but it does consume a little bit more in the case that there is a very large file in the archive because WinMount needs some more memory to create INDEX and CACHE to promote performance. As to mounting ISO or BIN, WinMount consumes far less memory.