I had form a system integration between system A and system B. System A would sync a same record to system B everytime a new record was inserted into a local Database of system A via Web Services. When there is some exception or failure to cause the web services disconnected, system A does not able to sync record to system B because the web services to be consume from system B cannot be reach. Is there any best practice to cater scenario in real life like this ? The new record created in system A cannot duplicate to system B. What if I schedule a job to check any failure record sync to system B and once the web services was back to online and trigger a patching operation to patch the record in system A back to system B?

Hi, I have a passport scanner to scan the passport image to the MFC client application. I was wondering if there is any method to enable the passport image populated on the MFC application could be able to transfer to another c# application an display on a popup window ?I am planning to form up a communication between the c++ and c# application, so that the passport image could be able to process in the c# web application once it was scanned from the MFC application connecting to the passport scanner. Thanks.