Fast Colorize HTML / XML

[NOTE: THERE IS A NEWER VERSION] This routine shows how you can process nested search-replace operations on large strings (megabytes) with VB. The program accepts a text-file as input and will output a colorized RTF file. Nothing new about that, but this program will generate large RTF files really fast because it uses a text buffer for string processing. You will see the difference if you try to colorize a 500+ kb XML file, most (all?) other 'colorize' programs on PSC that use native VB will fail on large files.