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.
Less commonly, runny nose can be caused by polyps, a foreign body, a tumor or migraine-like headaches. Causes of runny nose include: Acute sinusitis. Allergies. Chronic sinusitis. Churg-strauss syndrome. Common cold. Decongestant nasal spray overuse.