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I'm assuming that you are using multiple winsock controls in your program. If that is the case you should be able to loop through the controls and check to see if someone is connected.<br />
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For i = 1 to WinsockControls.Count<br />
&nbsp; If WinsockControls(i).State = 7 Then 'Connected<br />
&nbsp; &nbsp; UserCount = UserCount + 1<br />
&nbsp; End If<br />
Next
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I'm assuming that you are using multiple winsock controls in your program. If that is the case you should be able to loop through the controls and check to see if someone is connected.

For i = 1 to WinsockControls.Count
  If WinsockControls(i).State = 7 Then 'Connected
    UserCount = UserCount + 1
  End If
Next

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I have an application that runs on NT Server (located on a network). &nbsp;Users can connect to this multi-threaded application via a port number (e.g. 10020) defined in the services file using custom client tools running on NT Client. I would like to be able to monitor how many users had &nbsp;'connections' at any given time. &nbsp; 
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I have an application that runs on NT Server (located on a network).  Users can connect to this multi-threaded application via a port number (e.g. 10020) defined in the services file using custom client tools running on NT Client. I would like to be able to monitor how many users had  'connections' at any given time.   

Reading A 'Port'

A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Thousands of different programming languages have been created, mainly in the computer field, and many more still are being created every year. The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning). Some languages are defined by a specification document (for example, the C programming language is specified by an ISO Standard), while other languages (such as Perl) have a dominant implementation that is treated as a reference. Some languages have both, with the basic language defined by a standard and extensions taken from the dominant implementation being common.

Programming Languages-Other

Visual Basic is Microsoft’s event-driven programming language and integrated development environment (IDE) for its Component Object Model (COM) programming model. It is relatively easy to learn and use because of its graphical development features and BASIC heritage. It has been replaced with VB.NET, and is very similar to VBA (Visual Basic for Applications), the programming language for the Microsoft Office product line.