The file extension PWL is used for Windows 9x password lists. These files contain the Windows login data as well as the network and dial-up connections. A PWL file can store up to 255 passwords, is encrypted and is created in the Windows directory.
A PWL file is automatically created by Windows, if you select the Remember password option when logging in.
Most often resolving problems with opening PWL files is very simple. Just install an appropriate program that supports such files. All of the listed programs support PWL files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of PWL files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate PWL files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Proactive System Password Recovery applications is not on the list, select "Browse" option in order to manually locate the directory where Proactive System Password Recovery has been installed.
Sometimes problems with opening PWL files may not lie with the application itself, but can arise due to other causes, such as: