Assuming that you have Word, if you set up the "autocorrect" function in Word to be turned on, one of the default functions replaces (c) automatically with ©. The rather bizarre and marginally documented "feature" is that when Word is set up to do it, some, but not all other "Office" programs will also do it. A few other (not Office, but Windows compliant) programs seem also to be able to read the preferrences set up in Word.

The more general method is to hold down Alt while you enter 0169 on the NumPad. (This appears to work even in my mudcat "Reply to thread" box.) Since it doesn't work using the number keys at the top of the keyboard, those using laptops may have to do bizarre things to turn on the NumPad equivalent imbedded in their keyboard.

In an html posting, you can just use the "standard" © for the symbol.

As Clinton notes, you can copy the character from the CharMap and paste it.

I don't find the Ctl-Alt-C suggested by PennyBlack as a "generic" method in Windows, but you can create your own "quick key" combinations for characters, and many programs have default quick keys built in. That combination may be associated with some program PB has, or maybe I just don't have the right option turned on in my Windows.

John