Amongst features of terminal desktop services running RDP port, there is port redirection of parallel/serial from remote to local PC.
Can this redirection be somehow used to transfer large data to avoid using Clipboard (due to the known stack bug which may force user to close terminal desktop and re-logon)?
To transmit and receive data I'd use VBA for Excel on both terminal desktop as well as in local PC. Both would be running infinetely or at the same time.
Please advise if it's possible.
At least one company makes a library for doing Kermit (i.e. serial file transfer), which includes VBA support and samples for Access, Excel and Word.
It's not cheap though, and there are a lot of better ways of sending data around than serial file transfer protocols over virtual serial ports so I'd strongly consider better alternatives (file sharing, TCP sockets etc.).