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.
Runny nose results from discharge secreted by the mucous membranes lining the inside of your nose. Allergic reactions are a common cause of runny nose. Such reactions may be caused by pollen (hay fever), animal dander, foods, or medicines.