EDVR(0xe0140035)

[smoo]

Bit of a longshot this one, I've just put together a win98 PC that runs VB6 to control a 'legacy' test system.  The PCI GPIB card will communicate with the test instruments using the NI software, but the VB6 software has the EDVR error.  It uses the IBFIND routine, re-writing the software to use IBDEV is not an option.  I've tried different drivers, 2 different GPIB cards, and different PCI slots.  The GPIB configuration utility template is identical to another test system running the same VB6 software.

Any hints on how to further diagnose this problem?

[smoo · Accepted solution]

I should have waited, after a bit more searching I found this thread

https://forums.ni.com/t5/Instrument-Control-GPIB-Serial/ibfind-not-working-in-488-2-v2-5/m-p/819064

and when I looked at the GPIB.ini file it had quotes around the instrument names.  So I copied the ini file from a working system and all is well.

Apart from the new PC seems too fast now 😞