|best| | Windows Mailslot

Unlike Named Pipes, which support duplex communication, mailslots are strictly unidirectional. Clients write, and servers read.

The true superpower of the mailslot, and the reason it has survived decades of OS updates, is its ability to broadcast across a Windows domain. windows mailslot

int main() HANDLE hMailslot = CreateMailslot( "\\.\mailslot\MyMailslot", 0, // no message size limit MAILSLOT_WAIT_FOREVER, NULL ); if (hMailslot == INVALID_HANDLE_VALUE) return 1; Unlike Named Pipes