Migrating development software from LV 2006- XP to Windows 7 w/ver LV 2011

[jjjncho]

Labview 6.1 exe compiled in XP runs fine but when program is opened and running in Windows 7, i have errors related to "Polymorphic VI contain subVIs" error.  Are there any steps to migrate old version from XP to Window 7?

[Dennis_Knutson]

Why do you have 2006 in your subject? There is no such version.

Version 6.1 is not supported on windows 7. It's time to consider an upgrade.

[jjjncho]

oops, sorry for the confusion.  I'm trying to upgrade and have 2011 version on Windows 7, however, when I load this old (working) program, I am getting errors:

"Polymorphic VI does not contain subVIs".

When I run it on XP, with same 2011 version, there's not issue...any idea?

Thanks in advance for your help!

john

[RavensFan]

Which polymorphic VI is the error pointing to?

[jjjncho]

It's pointing to "AI Buffer Read.vi"

[RavensFan · Accepted solution]

That sounds like a VI from the traditional DAQ driver, which makes sense since the VI is coming from the LV6 era.

With Win7, you are going to need to install the DAQmx drivers.  That also means all of the subVI's that are in your program that are from traditional DAQ need to be replaced with DAQmx subVI's.