How to pass double couted paramaters to Command line utilities programatically + c#

Invoking a Command Line Utility From C#:

For eg. let's consider FWTools which has a command line utility named 

ogr2ogr for converting tab to kml

Below is the code to invoke the command line utility ogr2ogr

Invoking Command Line without parameters:

// Create an instance for System.Diagnostic.Process

Process proc = new Process();

// Provide the utility name with location

proc.StartInfo.FileName = @"C:\FWTools2.4.7\bin\ogr2ogr.exe";

// Start the process

proc.Start();

Invoking Command Line with normal parameters:

Note: -f, KML, sourcepath, destpath are arguments separted by space

Process proc = new Process(); 
string driver = @"-f KML C:\FWTools2.4.7\bin\zeeee.kml 
C:\FWTools2.4.7\bin\Morocco.tab"
proc.StartInfo.FileName = @"C:\FWTools2.4.7\bin\ogr2ogr.exe";
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.RedirectStandardOutput = true;
proc.StartInfo.RedirectStandardError = true;
proc.StartInfo.Arguments = driver; 
proc.Start();
proc.WaitForExit(); // use if you want your  program to wait for the process to complete.
proc.Close();

Invoking Command Line with Double couted parameters:

Usually space in the arguments list denote that each are separate

argument separated by space.

In the above code KML is the name of the driver used to convert 

Tab to KML.

And to convert ESRI's shape file to MapInfo's Tab file the driver 

used is "MapInfo File", which itself has a space. 

so by default command line arguments will consider it as a

two parameter one is "MapInfo" and other is "File". 

so the program goes wrong.

Below is the solution, how to pass the double couted paremeter

string driver = "-f " + @"""" + "MapInfo File" + @"""" +

 @" C:\FWTools2.4.7\bin\test.tab C:\FWTools2.4.7\bin\test.shp";

By using this methodology, we can pass "MapInfo File" as a 
single argument to a command line utility.

how to convert decimal degrees to miles + Javascript

To convert the decimal degrees to miles :

function distanceConverter(x1,y1,x2,y2)
{
// distance between 2 points from decimal degrees to miles
// where x values represent longitude
// where y values represent latitiude
dx = 69.172 * (x2 - x1) * Math.cos( y1 / 57.3);
dy = 69.172 * (y2 - y1);
var dist = Math.sqrt(dx * dx + dy * dy);
return dist;
}