To protect your pagefile using the latest version of BCWipe, we recommend using the embedded CryptoSwap utility to transparently encrypt the swap file. CryptoSwap allows you to encrypt the swap file with symmetric algorithms (Rijndael 256-bit key, Blowfish 448-bit key, GOST 28147-89 256-bit key, Twofish 256-bit key). The swap file is automatically encrypted on the fly: just create the Swap File Encryption task in BCWipe Task Manager (restart is required).
In addition, BCWipe can wipe unused portions of the swap file. On the ‘Wiping options’ tab, check ‘unused space in Swap File’: