Solution:

Kindly download and upgrade GeniDAQ to version 4.11 from our support web site: www.advantech.com/support -> IA -> GeniDAQ -> Software -> GeniDAQ 4.11 or www.advantech.com.tw/suppor -> IA -> GeniDAQ -> Software -> GeniDAQ 4.11 After that, here're 4 new DLL driver. Kindly overwrite ADSIODriver.DLL to directory "Program Files\Advantech\GeniDAQ". And also copy another 3 attached files into directory WINNT\SYSTEM. R&D found that this problem was cause by variant task access the same resource. In other words, due to the MULTI-THREAD feature, variant task will access the same resource at the same time. The protection is not enough.