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Microsoft Security Advisory (903144)

A COM Object (Javaprxy.dll) Could Cause Internet Explorer to Unexpectedly Exit

Published: | Updated:

Microsoft has completed the investigation into a public report of a vulnerability affecting Internet Explorer. We have issued a security bulletin to address this issue. For more information about this issue, including download links for an available security update, please review the security bulletin.

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The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.


  • June 30, 2005: Advisory published
  • July 1, 2005: Advisory updated with additional mitigations and workarounds
  • July 5, 2005: Advisory updated with Microsoft Download Center information for the registry key update that disables Javaprxy.dll in Internet Explorer
  • July 12, 2005: Advisory updated to direct customers to Security Bulletin MS05-037, “Vulnerability in JView Profiler Could Allow Remote Code Execution”.