Sayaf,
I just ran the same IIOA installer that is available for download on a clean Win 2K machine, and it all seemed to install correctly. As I mentioned in my last post, there are several components missing from your MAX directory - I will list them here so you will know what to look for:
1) VISA - if VISA is properly installed, you will see visa32.dll in your C:\Windows\System32 or C:\WINNT\System32 directory. You should also see a file named niVISAui.mxx in your \National Instruments\MAX\UI Providers\ directory. This is how we can tell VISA is not installed on your machine by looking at your MAX directory.
2) The Assistant Framework - this component is what the I/O Assistant is built on. If it is not present, then IIOA will not work. You can tell that it is installed because there will be a mxwTask.dll in your \National Instruments\MAX\ directory, and that is not there on your machine, either.
So something strange is happening here - Let's take a look at what the installer is doing:
When you run your IIOA installer, you should come to a tree that lists the different products that will be installed. You will see under "Instrument Control" - VISA, NI 488.2, and Instrument I/O Assistant. Then you will also see a "NI Measurement and Automation Explorer 3.0.2". You can tell if the installer "thinks" these different components are already installed or need to be installed by selecting the item in the tree and reading the text to the right of the tree - it will say something like "This feature will remain on your local drive" if it is already installed, or "This product will be installed" if it is going to install it. When you start over after uninstalling everything, what text is shown when you select VISA? Does the installer think it is already installed? Or does it say it is going to install it?
Another helpful way for us to tell what the installer is doing is for you to log what happens during the installation - you can do this by running the installer from the command line with the following syntax:
"C:\National Instruments Downloads\IIOA\1.0.1\setup.exe" \l*v c:\log.txt
This is assuming you downloaded the installer to C:\National Instruments Downloads\IIOA\1.0.1\. After doing that, attach the log.txt created during the installation and we can try to see why the installer is failing.
-Tommy
