Ok, it's not a "real" Captcha.
There is a site that uses a revolving set of approximately 392 images that contain 3 character variants and call them "captcha"
however, I recently found that the images are static, that is, I can take a screenshot of the image and when that same image shows up again, it will be the exact same image. the images do not use black, rather a 4 tone greyscale.
In building this procedure, I'm looking for opinions on difference between using a Case of x :loadbitmap end; findbitmap and Case of x :loaddtm end; find dtm or if there might be a better template. I'll add a copy of the "captcha" in a little while.