Hi Praveen,
The error you get when trying to execute the transaction from Workbench is that the user executing the transaction does not have access to the share to which you are trying to write to.
I believe the Windows SYSTEM account is used for MII file access, so this means that you will need to set up the remote share to allow Everyone - Full control in order for MII to write to this folder.
For test purposes, I recommend that you set up a folder on the target server that has both File And Share permissions set to Everyone - Full Control. Once you get the transaction working correctly with this then you can focus on setting up the correct user permissions on the target server.
Also, consider setting up a Mapped drive on the MII server that maps to the remote share on the CNC server. However, this may not work if you have a number of different CNC server shares; or you have to dynamically create the share name in the MII transaction logic.
There are other options if you are using MII14.0 or MII15.0 along with PCo 2.3 or PCo 15.0. Is an upgrade possible?
Regards, Steve