For each call of WSAStartup function you need to call WSACleanup in order to unload the library and clear resources allocated by the system.ĭeclare Function WSAStartup Lib 'ws2_32.dll' _ To start winsock service you must call the WSAStartup function.

If Not WSAStartup(&H101, StartupData) Then If Not WSAStartedUp Then 'WSAStartedUp is a flag Public Function StartWinsock( Optional sDescription) As Boolean Implementing StartWinsock and EndWinsock routines

We will use StartWinsock and EndWinsock function to start and stop winsock service. The Very first step to implement winsock client/server is initialize winsock service. Now we will go through each step to construct winsock server To learn about how to implement Winsock Client Please check Windows Socket (Winsock) Programming tutorial : Part-2 In this article we will implement Winsock server. Coz when you use winsock ocx you have to use Control array to handle multiple connection and its extra overhead to maintain Array of Winsock Control.

If you want to handle several connections without putting huge memory overhead.

If you want application without any dependancy OCX file (Winsock ocx).

You might have question that Microsoft Winsock Active-X control is great for client/server application then why should I care to learn API based Socket programming ? Here are the reasons Before we go into more detail let me clear why one more article on the earth for winsock API. We will implement very simple Asynchronous client and server using API without using Winsock Active-X control.

If you still can't find the file you need, you can leave a 'message' on the webpage.In this article we will explore power of winsock api.

If yes, please check the properties of these files, and you will know if the file you need is 32-bit or 64-bit. If you encounter this situation, check the file path to see whether there are any other files located in. There is a special case that, the operating system is a 64-bit system, but you are not sure whether the program is 32-bit or 64-bit. If your operating system is 32-bit, you must download 32-bit files, because 64-bit programs are unable to run in the 32-bit operating system. (Method: Click your original file, and then click on the right key to select 'Properties' from the pop-up menu, you can see the version number of the files)

If your original file is just corrupted but not lost, then please check the version number of your files. If you know MD5 value of the required files, it is the best approach to make choice Tip: How to correctly select the file you need

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