I wrote a new utility tool that reads an ".mht" file and extracts games written in pgn format. It is called "crunch.exe" and available for download at Jim Ablett's site;
http://homepages.tesco.net/henry.ablett/jims.html
An ".mht" file is a file that contains a complete web page and it is created by an Internet browser through the "File/Save" commands.
Using "crunch.exe" removes the chore of copying and pasting from a web page to a text file. Just save the web page in ".mht" format, and then use crunch. The output appears in the file "outZ.pgn". The original input ".mht" file is unchanged.
"crunch.exe" does the same for the simpler ".html" file.