Ah right, sorry about that. You need to use the command line. I'll make it simple and just give you this:
Put this in a .bat file in the same folder as disunity. Put the files in that directory also, and replace "my_asset_file.assets" with the name of the file to extract. Run the .bat file, it should show a bunch of words and then when it's done there should be a folder named after your file, containing the extracted files.
Code:
disunity extract my_asset_file.assets
Put this in a .bat file in the same folder as disunity. Put the files in that directory also, and replace "my_asset_file.assets" with the name of the file to extract. Run the .bat file, it should show a bunch of words and then when it's done there should be a folder named after your file, containing the extracted files.