How do you re-glaze old windows?

Answer 1

Found this at another site:

* First, using a putty knife, dig out the old glazing and scrape it away. * Roll out the glazing putty into strips between your hands to soften it. * Press the glazing putty all the way around the frame of the glass. * Finally, smooth out the glazing compound with a putty knife and remove the excess.

Answer 2

use a hair dryer set on high, direct the flow onto the old glazing, when soft remove it with a putty knife, then replacing glaze, work it with your fingers till it softens, form a rope about the size of a pencil, then gentley push it into place ,then use a putty knife to smooth it out,