I have a customer using my primary "product" LabVIEW program (e.g. it has existed for years under many versions of LV, and many customers). He called me today while it was running, because all the LabVIEW windows disappeared and a UAC window appeared asking if he wanted to allow this program from an unknown manufacturer to make changes to his system. And the window noted that the program was "LabVIEW". While we were talking, the UAC disappeared and all the LabVIEW windows reappeared. As you probably expect, LV was still running in the background. The UAC had just taken over the screen.
His version of my program is in LV 2021. However, in LV 2015, 2018, 2021, and 2024, I've never seen, nor ever heard of a customer experiencing, a UAC box in the middle of running this program. (Or for that matter, any other LV program.) With LV, I've only seen those during installation and such. I suppose a UAC could pop up if the program, at some point, decided to try to write to a directory, and that directory had been given different access permissions since the program last ran. The IT folks are not supposed to touch this experiment computer, but I'll ask about that possibility.
Has anyone else seen this behavior? It seems very odd to me that the UAC would appear for no known reason. It seems very odd to me that the UAC would say that the software manufacturer is unknown. (I'm just going by memory, but I think LV UACs are more well-identified than that.) And it seems especially odd to me that the UAC would disappear on its own without any action by the user.
TIA - DaveT
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David Thomson Original Code Consulting
www.originalcode.com
National Instruments Alliance Program Member
Certified LabVIEW Architect
Certified Embedded Systems Developer
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