mklink [[/d] | [/h] | [/j]] <Link> <Target>

…

/d

Creates a directory symbolic link. By default, mklink creates a file symbolic link.

/h

Creates a hard link instead of a symbolic link.

/j

Creates a Directory Junction.

<Link>

Specifies the name of the symbolic link that is being created.

<Target>

Specifies the path (relative or absolute) that the new symbolic link refers to.

/?

Displays help at the command prompt.

[http://technet.microsoft.com/en-us/library/cc753194%28WS.10%29.aspx]