Adams
I should like you read my problem again!
Your third case:
C:\txt\Site\Pages
<img src="img/foot.jpg" />, the relative path will be translated to C:\Tex\Site\Pages\img\foot.jpg.
coincides just with my situation.
But as I explained to you, if I call the page using editor.LoadFile(path) where path is equal to "C:\Tex\Site\Pages\index.html", the page is rendered without the effect of the image 'foot.img' beucase its relative path is translated erroneusly in 'C:\Tex\img\foot.jpg' instead of 'C:\Tex\Site\Pages\img\foot.jpg'
As you can see, the effect is different from what you told me.
Best regards