Carbon Copy (software) Carbon Copy was an early remote control and file transfer software for DOS and Windows published by Microcom. It allowed remote access to a computer via dial-up modem connection.
A viral infection (the common cold) is the most common cause of a stuffy and/or runny nose, but allergies, influenza, and sinus infections also may cause these symptoms. Less commonly, anatomical obstructions (e.g. a deviated nasal septum, foreign bodies) may lead to nasal congestion.
This excess fluid also runs down the back of your throat in the dreaded post-nasal drip. Sometimes you'll have nasal congestion along with your runny nose, but not always. Dozens of things can cause your nose to run, from a variety of allergies and illnesses to more serious conditions like a deviated septum. Certain medications, stress and even pregnancy can also cause a runny nose. Sometimes the condition indicates a life-threatening problem, especially if you've suffered a head injury or trauma to the brain.