I found an Xfs wrapper in c# (class library) here. Created a test project and set up the windows registry with all the necessary information for the Xfs manager.
HKEY_LOCAL_MACHINE/SOFTWARE/XFS
HKEY_USERS/.DEFAULT/XFS
Test program
When I press the Open button for the Card Reader, it gives an error -29.
Error code list
Please help what else can I do
Sorry for late answer. Do you have any service provider in your local that's logical name is "IDC". If you have this dll file, try copying this dll file to the directory where it works