Instrument Control (GPIB, Serial, VISA, IVI)

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Unknown code calling viFindRsrc

I'm looking into a communication problem with an LXI instrument and using NI I/O Trace (formerly known as NI-Spy).  I noticed that something is calling viFindRsrc for PXI0::MEMACC, opens a handle, and reads some attributes.  Then I see similar calls for several other resources such as PXI0::1::BACKPLANE, PXI0::2::BACKPLANE, then several other PXI and TCPIP resources.
 

I'm concerned primarily about this unknown code interfering with my communications as well as the performance hit (about 300 ms per occurrence).  Does anyone know what is creating these calls and how to disable them? 
 
I've included a capture file.
 
Thanks, Mark

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duplicate post follow here http://forums.ni.com/t5/PXI/Something-calling-viFindRscr-for-PXI0-MEMACC/m-p/2477714

National Instruments
Applications Engineer
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