WD SSD Dashboard and TRIM command in Task Scheduler

[komtur]

I set TRIM command in Task Scheduler via WD SSD Dashboard 2.2.0.5, but it looks like the command to execute is wrong.
WD SSD Dashboard sets “%WINDIR%/System32/Defrag.exe C: C: -0 -H”
Why “C:” is duplicated? And I guess the “-0” (zero) parameter should be “-O”.