URGENT !! Need to know difference betweend IE6 XP SP1 ans IE6 XP SP2

My application use Drag & Drop Internet Explorer events.

onDragStart  ondragenter  ondragover  ondrop

It was working very well since IE 5.5 and till IE 6.0.2800.1106.XPSP2.030422-1633

But, with the SP2 update, customers tell me drag and drop don't work anymore, or partially

it don't work since IE 6.0.2900.2180.xpsp_sp2_rtm.040803-2158

Could you help me to find what's new in this release about drag and drop ???

it's urgent !!!!
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Asta CuTechnical consultant & graphic designCommented:
Some additional insights into why here:
Security researchers predicted that vulnerabilities would quickly be found in Windows XP Service Pack 2, or SP2. The drag-and-drop flaw is perhaps the most serious found to date in computers that have been patched with Microsoft's major security update.

Service Pack 2 promises to add better security to Windows XP's handling of network data, program memory, browsing activity and e-mail messages, by changing the system's code and configuration. A revamped firewall, for example, attempts to prevent malicious applications on a PC from connecting to the Internet by requiring that the user give specific permission for each attempt.

More here.  .  .  http://news.zdnet.com/2100-1009_22-5318358.html

After you install the MS04-038 security updates for Microsoft Internet Explorer, you may experience the following symptoms:• DHTML drag-and-drop operations are blocked for image elements if the image is not valid.
• DHTML drag-and-drop operations are blocked for anchor elements that include non-HTTP or HTTPS URLs.

Other insights found at the MSDN site, but site just locked up (too busy).... off to work.
Asta CuTechnical consultant & graphic designCommented:
Many  changes in IE with Service Pack 2 .... pop up blockers, firewall related to OS and binary behaviors in IE and more....  This gives a brief overview.
Asta CuTechnical consultant & graphic designCommented:
Will see if I can find anything further on DHTML and IE6 SP2
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Asta CuTechnical consultant & graphic designCommented:
Appendix: Windows XP Service Pack 2 Enhancements to Internet Explorer 6
Asta CuTechnical consultant & graphic designCommented:
The last link is quite informative and includes much, this is one piece.
Binary Behaviors Security Setting - Feature Goal
Internet Explorer contains dynamic binary behaviors: components that encapsulate specific functionality for HTML elements to which they were attached. These binary behaviors are not controlled by any Internet Explorer security setting, which allows them to work on Web pages in the Restricted Sites zone. In Windows XP Service Pack 2, there is a new Internet Explorer security setting for binary behaviors. This new setting disables binary behaviors in the Restricted Sites zone by default. This new binary behaviors security setting provides a general mitigation to vulnerabilities in Internet Explorer binary behaviors.

For more information on binary behaviors, such as how they work and how to implement them, see “Cutting Edge: Binary Behaviors in Internet Explorer 5.5” on the Microsoft Developer Network (MSDN) Web site at http://go.microsoft.com/fwlink/?LinkId=21862. Note that binary behaviors, which are defined in C++ and compiled, are different from Attached Behaviors and Element Behaviors, which are defined in script.
Asta CuTechnical consultant & graphic designCommented:
Thank you, Venabili for your dedication to this site and helping all to finalize questions that were overlooked or abandoned.  I'm wondering if perhaps the Asker here has some site access problems, since there are seven open items, one of which dates back to September.
":0) Asta
eeolivierAuthor Commented:
> astaec

I was still waiting for an answer. A temporary fix has been implemented here about drag and drop, but i still don't understand the change

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