I have added a preliminary gui frontend (chtmlgui.exe):
chtml_2006_04_29a.zip
You might need to get the library file MFC71.dll if you can not run chtmlgui.exe. You should be able to place it in the chtml folder and get the gui to run. If not, placing it in Windows\System32 should work.
I should also mention that the file menu doesn't do much of anything. I might add the ability to load and save settings files in the future, or I might delete it.
Edit:
Fixed an issue with image file extension.