Question

How do I send arguments to a process that started before?

Suppose we started process “Name.exe” before, and we know its process ID is X. In order not to open a new process, I want to send an argument to this process. How can I do this?

What is the most secure way so I will find the date received from my application, not hackers?

Answer 1

It depends on how this process reads these parameters (its protocol for inter-process comunications).

• If it uses named pipes – use pipes.
• If it watches for certain files – create files and write to them
• If it uses sockets – use sockets to operate
• If it listens for queue – use MSMQ or other API for queueing

For example, you can start from Choosing a Transport (MSDN).