With this program (cs.exe):

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class Program
{
    static void Main(string[] args)
    {
        foreach (var item in args)
        {
            Console.WriteLine(item);
        }
    }
}

And the runs:

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> cs.exe go\to\a_path
go\to\a_path

> cs.exe "go\to\a path"
go\to\a path

> cs.exe "go\to\a path\"
go\to\a path"

> cs.exe 'go\to\a path\'
'go\to\a
path\'

That means if your path has a space so you quote it, be very careful NOT to put a trailing \ at the end, otherwise your program might just not be able to handle it as it incorrectly contains a " at the end. Single quote is even weirder!