/q   Quickshredder
/e
z   = zero  
p   = Pseudorandom data
r    = RCMP (DSX)
u   = US DoD 5220.22-M (E) 3x
t   =  US DoD 5220.22-M (ECE) 7x
g   = Gutmann (35 pass)

/x =Exit

sample:
DP_Shredder c:\test.txt /eu /x
DP_Shredder c:\test.txt /q /et /x