How to call the standard Windows "defrag" program in C/C++ code?

Question

Programming

Hello.
Can't call defrag program and pass keys when writing C++ code

system("defrag");
  или
 system("defrag C:");

type error
is not recognized as an internal or external command operable program or batch file

Answer 1

Let's guess: you're trying to run a 64-bit defrag on a 64-bit OS from a 32-bit application? It is not recognized as an internal or external command operable program or batch file. :-)

Answer 2

Try the full path.

Answer 3

give up the pernicious idea of ​​using defrag

Answer 4

Immediately after the error tried, but the same.
works great

Answer 5

And why are you using system? CreateProcess does not suit you? Read all the same to the dock in MSDN on the system, there, as it were, they hint for what it is used and how.

Answer 6

system will not work, use CreateProcess from WinAPI