VB6: Web Browser Control run-time error "-2"

I am using a Web Browser control in VB6, and it consistently gives me a Run-time error with an error number that is always negative, small, and even (-2, -4, -6, etc.).  Even though I have placed an ON ERROR directive in every routine involving the browser, I consistently get this Run-time error without the opportunity to capture the error and debug the code: the dialog box gives me only an OK and Help button: pressing Help does absolutely nothing; and pressing OK terminates the program.  Using the Web Browser is the place and time that I experience this peculiar behavior, and it happens with great consistency.  
I am more than willing to share more information and, if ncessary, upload the program on EE's web site for perusal.  For my first pass, I'll simply ask if any of you have ever encountered this error before, and what you've done.
Thanks, ~Peter Ferber
RuntimeError.bmp
PeterFrbWeb development, Java scripting, Python TrainingAsked:
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PeterFrbConnect With a Mentor Web development, Java scripting, Python TrainingAuthor Commented:
I've answered my own question!  I had a "clean-up" routine to finish off some processes.  As browsers are more prone than most objects to interrupting a given event to perform some more recent event, I believe my code put itself into a loop.  It successfully navigated to the first site, but it was in trouble at that point; and with the next navigation, it gave the error shown above.  
As a general rule, I would say to be very careful to code each event process very specifically, and don't, if possible, have events calling one's own contained routines.  In the event that another event arbitrarily interrupts the self-contained routine, the results will be sporadic, unpredictable, and prone to untrackible errors.
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