If on a machine with the IE security setting "Submit nonencrypted form data" 
set to prompt, when I run the following code...

Dim HTTPObj As New XMLHTTP40
HTTPObj.open "POST", "http://www.something.com/test.asp", False
HTTPObj.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"
HTTPObj.send "MyData=" & SomeBigString

The user is prompted: "When you send information to the Internet, it might 
be possible for others to see that information. Do you want to continue?"

If they say no, I get an "Access is denied" error on my call to .send()

Unfortunately, I need to call this code over and over again so I don't want 
to ask the user everytime. In fact, I've already got user approval to be 
sending this data in my own dialog. So, the question is: how do I supress 
this dialog?

Changing the method to "GET", dropping the request header, and including the 
data in the querystring gets rid of the prompt but gives me a different 
error because it's trying to send too much data.

I've also tried changing my URL to a valid HTTPS site hoping that this would 
render the prompt unneccessary (since the data would then be encrypted when 
sent). Unfortunately, that had no affect.

I could also find the registry key for this setting, back it up, alter it as 
if the user chose to enable sending unencrypted data over the web, send my 
data and restore the registry key. I was hoping for a cleaner solution than 
temporarily messing with the user's settings.

Any other suggestions or ideas!?