I downloaded MSXML V4 from the MS website and installed it I expected to see it in the list box when creating a new ActiveX control for my CVI application, but I did not. Should it be there?
You will need to create an instrument driver in CVI for those ActiveX components. You will find your DLLs that you installed with MSXML shown in the ActiveX Controller Wizard (Tools >> Create ActiveX Controller). When this tool is opened, scroll down the list to Microsoft XML.
Therein lies the problem. When the wizard is opened and I scroll down the list, I find these two entries: Microsoft XML, V6.0 Microsoft XML, Version 2.0 Neither of these two entries are related to MSXML V4.0
I have the same issue on my machine. I tested out installing MSXML 4.0 on a clean machine and CVI does show that entry in the ActiveX Controller Wizard. I then used Microsoft's OLE/COM Object Viewer to see all the type libraries installed on my machine. This tool shows the same UUID (Universal Unique Identifier) for all the versions of MSXML (See attached screenshot). Thus CVI is only showing the latest and earliest versions. So, you can either use the MSXML v6.0 option or browse for the v4.0 option (C:\Windows\System32\msxml4.dll). Either way, you will be in good shape.
