Defrag from NSIS
Hello,

I am trying to use the Microsoft disk defragmenter in an NSIS script i am working on, but even in this simple example It does not work. It just does not seem to launch the defrag executable.

I am sure the command itself is correct as the exact command works from a batch file.
I have also tried exec, execwait, nsexec::exec with no luck.
I am using Windows 7 64 bit.

Here is the example: