Something really odd with LabWindows/CVI 2010, win7 Professional.
1. I built a bunch of class and specific class drivers in LabWindows/CVI 2010 and created MSI files.
2. I start with one instrument A and installed its class and specific drivers. All good.
3. When I move to the next instrument B, a class driver B install will uninstall the previous class driver A in (2) and then install class driver B. Same happens with the specific driver.
4. This happens with all my drivers. The one before is uninstalled.
5. If I go back to a instrument A, a MSI error will pop up saying I have a later version of Driver A, please uninstall and re-install. But A has already been uninstalled. There is no trace of it on the system.
Is this a licensing issue? This is baffling. I have rebuilt all the drivers and tried it several times on other machines and the same behavior. The last time I looked at these drivers was last year (July 2013) on Win7 and there were no problems at that time.
Any advise would be greatly appreciated!
Thanks,
Minesh