ShowMiiWads is a ‘Wad File Manager’ for Windows. It displays information about wad files, edits them, gives a preview of the Banner and Icon and more. New since Version 1.0 is the included NAND Backup Browser ‘ShowMiiNand’ which displays all titles installed in your NAND Backup (No BootMii Backups!).

Editing WAD files can result in a brick of your Wii. Only use these features if you have a bricksafe Wii, meaning either Preloader or BootMii/boot2 is installed, and if you know what you’re doing. Also, your Wad files could be destroyed, so be sure to have a backup.

This application comes without any express or implied warranty. The author can’t be held responsible for any damages arising from the use of it.

Changes:

64 bit Version is now available
Improved speed. Now, information is loaded at application startup and saved in a file. Whenever it reloads, the information is read out of the file, only new files are added. If you need to completely refresh the whole list, use ‘File -> Refresh’ (F5). When the language is changed, only the Channel Titles column will be reloaded
Multiple selections are now possible. If you want to select a whole folder, just left click the header once.
Added Splash Screen with ProgressBar to show the loading status (can be disabled)
Added Option to remove all folders
Added Option to refresh single folders
New Icon (Thanks to NeoRame!)
Bugfixes and tiny improvements
Application will now ask you to download a new version, if available
Italian translation added (Thanks to Tetsuo Shima)
Spanish translation added (Thanks to putifruti) (Incomplete, 2 sentences still Eng)
Norwegian translation added (Thanks to pesaroso)

http://wiibrew.org/wiki/ShowMiiWads