C#

Socket clientSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);

Zeyad Jalil wrote:

I need to make this product as a cloud service such as I will publish the web service on My servers and also publish the clients SQL databases on our servers and the clients only download the client application (Financial System) and install it on their PC's.

Quote:

Please let me know what is the best case to manage the clients accounts and registrations and what is the best solution for this.

// Do works ... Consider that classes are shared between clients and servers
// so classes are Invoked ...

|Start of Message|Length in bytes|CheckSum|Message bytes...|
|    F0 F0 F0    |  00 00 00 1A  |   F6   |data bytes...   |

public static void CopyStream(Stream input, Stream output, int MaxLength)
{
	int read, totalread = 0;
	byte[] buffer = new byte[81920];
	while (totalread < MaxLength)
	{
		read = input.Read(buffer, 0,
			(
				((MaxLength - totalread) < buffer.Length) ?
					(MaxLength - totalread) :
					buffer.Length
			)
		);

		if (read == 0) break;

		totalread += read;
		output.Write(buffer, 0, read);
	}
}