Hello Vishi,
This problem usually occurs when there are multiple versions of the cvirte.dll on your machine, or when you are using a version of the runtime engine which is older than the version of the CVI environment you used to build your application. Did you at anytime install the 7.1.1 runtime engine on the development machine? Either way, I would first take a look at the comments in the following
post and search for any duplicate cvirte.dll files on your machine.
Thanks.
Wendy L
LabWindows/CVI Developer Newsletter