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.
For those who are sufferers of post-nasal drip, you know very well the symptoms to look out for such as dripping liquid (mucus) in the back of your throat, trouble swallowing, sore throat, and the constant need to clear your throat which can turn into a chronic cough.ost-nasal drip can happen for many different reasons. Some of the most common causes are as follows: 1  Illness-colds and flus usually produce the most mucus. 2  Allergies. 3  Sinus Infection. 4  Dry air (heat from a furnace in the winter). 5  Foods (ones that make the nose run or that tend to build mucus like dairy products).