algorithms

Hello,

1. I am working on a software that I need to implement any of the secure file deletion algorithms like NSA or DOD 5220 algorithm. Anyone knows how I can get the algorithm (detailed explanation) to implement or get an already-implemented one to use?

2. Anyone programs in WMI? have u implemented the setPowerState method of win32_logicalDisk class? I need to know how u worked around the DateTime class (System.DateTime).

Thanks in advance.