I had my BBCodeparser indeed use ie in the pre public versions, but it hanged too much and didn't work properly.
then I found that best way is not let IE understand any of the stuff that is going on and I made dir() to scan all IE tempfiles and take the right one.
it was too slow.
with winhttp I have not experienced any of these problems, cause it just simple get's the source and does not interprete it.
I have experienced with pre finals of winhttp sdk 5.0 some problems, with bbchecker thou...
problems has occured when same page has been transferred about 250 times.
I think your script is fine, but as you stated, it's not reliable.
and I was looking for kixOnly solution with maybe some help from outside dll's like kiXforms and winhttp5.

but, is this, what I'm lacking in my script, possible:
to have kiXforms have textbox or frame which is scrollable on both dimensions?

cheers and thanks for your insight,