There is only one file type that uses the .KWM extension:
WebMoney Key File
Private key file created by WebMoney, a desktop program that allows users to access the WebMoney online fund transfer and payments system; saves the user's private keys in a small encrypted file; can be required for certain software functions.
WebMoney recommends backing up the KWM file to an external storage device, such as a USB key or a CD.
|WebMoney Keeper Classic||Free|
Updated: December 4, 2012