Multiple Versions of cvirte.dll - Compatibility Question

[MadHacker]

I have LabWindows/CVI 2009 version 9.1.0 (427) installed on my machine.  However, I have two versions of cvirte.dll.  One version is 9.1.0.427, and the other is 9.1.1.450.

Somehow, 9.1.1.450 got onto my machine; maybe when I installed other NI products.

My question is this: does it matter which of these two versions of cvirte.dll that I distribute with my applications built with with LabWindows/CVI 2009 version 9.1.0 (427)?  Or should I stick with cvirte.dll version 9.1.0.427, since it matches my compiler version?

Thank you.  I'm actually delaying a software delivery until I can find out for sure what I should do.

[Ian.W]

The runtime engine has very good backward compatibility from version to version, so for that minor update I'm quite confident that you will see no problems to use the latest.

We used the 2010 SP1 RTE and the security update here for pretty much all our 2009 development work without issue.