2 

     3 * Quoting.

     4 

     5  * Arguments are delimited by white space, which is either a space or a tab.

     6  * A string surrounded by double quotation marks is interpreted as a single

     7    argument.

     8  * A double quotation mark preceded by a backslash, \", is interpreted as a

     9    literal double quotation mark.

    10  * Backslashes are interpreted literally, unless they immediately precede a

    11    double quotation mark.

    12  * If an even number of backslashes is followed by a double quotation mark,

    13    then one backslash (\) is placed in the argv array for every pair of

    14    backslashes (\\), and the double quotation mark (") is interpreted as a

    15    string delimiter.

    16  * If an odd number of backslashes is followed by a double quotation mark,

    17    then one backslash (\) is placed in the argv array for every pair of

    18    backslashes (\\) and the double quotation mark is interpreted as an escape

    19    sequence by the remaining backslash, causing a literal double quotation

    20    mark (") to be placed in argv.

    21  * In double quote mark need surround such chars:

    22      & < > [ ] { } ^ = ; ! ' + , ` ~

    23 

    24   http://msdn.microsoft.com/en-us/library/ms880421.aspx

    25                 Parsing C Command-Line Arguments