>Hi,
>
>I receive this message from a customer who runs my application. The application is using SQL Server and the application cannot connect to the SQL Server. I think something to do with ODBC driver. But here is the message:
>

>With the release of Windows 10 version 1803, Microsoft added something to their Windows Defender component that
>cannot be disabled directly which actively blocks all network communication attempts from any applications being 
>run from a SMB 1.X network share.  
>

>
>Which means that they cannot run my application from this share. Frankly I don't understand what is "SMB 1.X". Could someone please explain? Anyone else is having this issue with their application?

You can:
1) upgrade server to W 2008 or higher
2) move files to server W 2008 or higher
3) rollback Spring update on PC, disable update/upgrade and waits to next MS fix
4) copy exe from network to local
5) disable Windows defender and install antivir with firewall

MartinaJ