If you wish to use WinRAR and RAR after the evaluation period of 40 days, you need to purchase its license from one of the regional dealers. You may visit WinRAR home page for buying online or to read the latest sites list.
Upon receipt of your registration fee you will receive an email containing a registration key file corresponding to the user name string which you have chosen. Please specify a valid email address when buying the licence, as it will be used to send you the key file.
The registration email will also contain all necessary instructions, so please just follow them. Below, we provide a brief explanation of the typical registration procedure, but instructions in the email are more up to date than this file and should thus have a higher precedence.
If you use WinRAR, you will need to copy the registration key file (rarreg.key) to a WinRAR folder or to %APPDATA%\WinRAR folder folder. By default WinRAR folder is "C:\Program Files\WinRAR", but it can be changed by a user when installing WinRAR. You can also drag rarreg.key file and drop it to WinRAR window to register.
If the key is archived in a .rar or .zip file, please extract rarreg.key from the archive before copying it. If archive name is rarkey.rar, another way to install the key file is to open such archive in WinRAR and answer "Yes" to confirmation prompt.
You can place rarreg.key to the same folder as WinRAR installer .exe file if you wish the installer to apply it automatically. Such rarreg.key file is used only if no previously installed key files are found.