WinMount supports 7Z
About 7Z:
7z is a compressed archive file format that supports several different data compression, encryption and pre-processing filters. The 7z format initially appeared as implemented by the 7-Zip archiver. Both the 7-Zip program and a library to read the 7z file format are publicly available under the terms of the GNU Lesser General Public License.
The MIME type of 7z is application/x-7z-compressed.
What can you do with 7Z files by using WinMount?
WinMount can mount 7Z files on a new drive, so that you can use files inside it directly. There is no extraction time before you use them, and you don't need disk space to hold these huge files. WinMount saves your time and disk space!
Generally, if you want to use files inside a 7Z file, you should extract it first. In most cases, it takes you a long time to extract a large 7Z file, especially when it comes to extract a 7Z archive with thousands of files inside and you need extra disk space to hold them. Now, with WinMount, everything will be changed!
WinMount supports browsering 7Z files;
WinMount formats: 
