IIS server variables provide information about the server, the connection with the client, and the current request on the connection. When CATSWeb calls out to ActiveX DLL Data Links, ActiveX DLL with Parameters Data Links or Web Service Data Links, the colHTML interface parameter will contain a complete set of IIS Server variables during some operations. Some are listed in the table below. See Microsoft IIS Server Documentation for full details IIS Server Variables.

The IIS Server variable names are prefixed (by CATSWeb) with “SERVERVARIABLE_” to prevent possible name space collisions with future versions of CATSWeb. This means that your .NET Class code would access the HTTP_USER_AGENT variable like this:

Dim userAgentInfo As String = vbEmpty
userAgentInfo = colHTML.Item(“SERVERVARIABLE_HTTP_USER_AGENT”)