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(Or similarly, Excel.) For example, I would like to be able to run an HTML help file from LabVIEW. No luck with the "System Exec" VI, and I don't know much about ActiveX.
In case the link doesn't work for any reason, the title of the initial question post was "finding default web browser". A search in the Developer Exchange or on the ni.com support site should bring it up.
I was able to open up a test HTML file on my Windows system using the argument (no quotes) "C:\windows\readme.htm" as the input URL.
By the way, System Exec will work, but it takes some playing sometimes and it isn't as bulletproof and platform-independent as the VI referenced in the post above. I was able to get my mac hine to fire up the same test HTML file as above using this (no quotes) as an argument to System Exec: