Scripting Bitlocker Decryption of a local hard-drive
Solution 1:
manage-dbe -unlock -pw
The above line can be dropped into a .bat batch file and it prompts for a password to unlock a bitlocker encrypted drive.
I'm currently looking into doing this from Powershell myself, as I do want to input my password into my script as my script will be on my host OS drive which will be TrueCrypt encrypted.