Windows Error Report while navigating to webpage with XBAP

Question

We have a webpage with an iframe where I host an XBAP application. This application is working fine but....

Once in a while some of the users get this error while navigating to this webpage.

<?xml version="1.0" encoding="UTF-16"?>
<DATABASE>
<EXE NAME="SYSTEM INFO" FILTER="GRABMI_FILTER_SYSTEM">
    <MATCHING_FILE NAME="advapi32.dll" SIZE="684544" CHECKSUM="0xBE48A5D4" BIN_FILE_VERSION="5.1.2600.5755" BIN_PRODUCT_VERSION="5.1.2600.5755" PRODUCT_VERSION="5.1.2600.5755" FILE_DESCRIPTION="Geavanceerde Windows 32 basis-API" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Besturingssysteem Microsoft® Windows®" FILE_VERSION="5.1.2600.5755 (xpsp_sp3_gdr.090206-1234)" ORIGINAL_FILENAME="advapi32.dll" INTERNAL_NAME="advapi32.dll" LEGAL_COPYRIGHT="© Microsoft Corporation. Alle rechten voorbehouden." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0xAAA78" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="5.1.2600.5755" UPTO_BIN_PRODUCT_VERSION="5.1.2600.5755" LINK_DATE="02/09/2009 10:56:06" UPTO_LINK_DATE="02/09/2009 10:56:06" VER_LANGUAGE="Nederlands (Nederland) [0x413]" />
    <MATCHING_FILE NAME="gdi32.dll" SIZE="286720" CHECKSUM="0xBC7BDECB" BIN_FILE_VERSION="5.1.2600.5698" BIN_PRODUCT_VERSION="5.1.2600.5698" PRODUCT_VERSION="5.1.2600.5698" FILE_DESCRIPTION="GDI Client DLL" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Microsoft® Windows® Operating System" FILE_VERSION="5.1.2600.5698 (xpsp_sp3_gdr.081022-1932)" ORIGINAL_FILENAME="gdi32" INTERNAL_NAME="gdi32" LEGAL_COPYRIGHT="© Microsoft Corporation. All rights reserved." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0x553FE" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="5.1.2600.5698" UPTO_BIN_PRODUCT_VERSION="5.1.2600.5698" LINK_DATE="10/23/2008 12:43:45" UPTO_LINK_DATE="10/23/2008 12:43:45" VER_LANGUAGE="Engels (Verenigde Staten) [0x409]" />
    <MATCHING_FILE NAME="kernel32.dll" SIZE="1030656" CHECKSUM="0x1B46B288" BIN_FILE_VERSION="5.1.2600.5781" BIN_PRODUCT_VERSION="5.1.2600.5781" PRODUCT_VERSION="5.1.2600.5781" FILE_DESCRIPTION="DLL-bestand voor Windows NT BASE API-client" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Besturingssysteem Microsoft® Windows®" FILE_VERSION="5.1.2600.5781 (xpsp_sp3_gdr.090321-1317)" ORIGINAL_FILENAME="kernel32" INTERNAL_NAME="kernel32" LEGAL_COPYRIGHT="© Microsoft Corporation. Alle rechten voorbehouden." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0x101480" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="5.1.2600.5781" UPTO_BIN_PRODUCT_VERSION="5.1.2600.5781" LINK_DATE="03/21/2009 14:09:59" UPTO_LINK_DATE="03/21/2009 14:09:59" VER_LANGUAGE="Nederlands (Nederland) [0x413]" />
    <MATCHING_FILE NAME="ntdll.dll" SIZE="739328" CHECKSUM="0x8F124EAE" BIN_FILE_VERSION="5.1.2600.6055" BIN_PRODUCT_VERSION="5.1.2600.6055" PRODUCT_VERSION="5.1.2600.6055" FILE_DESCRIPTION="DLL-bestand voor NT-laag" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Besturingssysteem Microsoft® Windows®" FILE_VERSION="5.1.2600.6055 (xpsp_sp3_gdr.101209-1647)" ORIGINAL_FILENAME="ntdll.dll" INTERNAL_NAME="ntdll.dll" LEGAL_COPYRIGHT="© Microsoft Corporation. Alle rechten voorbehouden." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0xC053A" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="5.1.2600.6055" UPTO_BIN_PRODUCT_VERSION="5.1.2600.6055" LINK_DATE="12/09/2010 15:15:34" UPTO_LINK_DATE="12/09/2010 15:15:34" VER_LANGUAGE="Nederlands (Nederland) [0x413]" />
    <MATCHING_FILE NAME="ole32.dll" SIZE="1287680" CHECKSUM="0xEBCF2F82" BIN_FILE_VERSION="5.1.2600.6010" BIN_PRODUCT_VERSION="5.1.2600.6010" PRODUCT_VERSION="5.1.2600.6010" FILE_DESCRIPTION="Microsoft OLE voor Windows" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Besturingssysteem Microsoft® Windows®" FILE_VERSION="5.1.2600.6010 (xpsp_sp3_gdr.100712-1633)" ORIGINAL_FILENAME="OLE32.DLL" INTERNAL_NAME="OLE32.DLL" LEGAL_COPYRIGHT="© Microsoft Corporation. Alle rechten voorbehouden." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0x13D7C6" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="5.1.2600.6010" UPTO_BIN_PRODUCT_VERSION="5.1.2600.6010" LINK_DATE="07/16/2010 12:01:17" UPTO_LINK_DATE="07/16/2010 12:01:17" VER_LANGUAGE="Nederlands (Nederland) [0x413]" />
    <MATCHING_FILE NAME="oleaut32.dll" SIZE="551936" CHECKSUM="0xCA395E5B" BIN_FILE_VERSION="5.1.2600.5512" BIN_PRODUCT_VERSION="5.1.2600.5512" PRODUCT_VERSION="5.1.2600.5512" COMPANY_NAME="Microsoft Corporation" FILE_VERSION="5.1.2600.5512" INTERNAL_NAME="OLEAUT32.DLL" LEGAL_COPYRIGHT="Copyright © Microsoft Corp. 1993-2001." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0x907D2" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="5.1.2600.5512" UPTO_BIN_PRODUCT_VERSION="5.1.2600.5512" LINK_DATE="04/14/2008 17:01:54" UPTO_LINK_DATE="04/14/2008 17:01:54" VER_LANGUAGE="Engels (Verenigde Staten) [0x409]" />
    <MATCHING_FILE NAME="shell32.dll" SIZE="8509440" CHECKSUM="0xFF64F730" BIN_FILE_VERSION="6.0.2900.6072" BIN_PRODUCT_VERSION="6.0.2900.6072" PRODUCT_VERSION="6.00.2900.6072" FILE_DESCRIPTION="Gemeenschappelijk DLL-bestand van Windows Shell" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Besturingssysteem Microsoft® Windows®" FILE_VERSION="6.00.2900.6072 (xpsp_sp3_gdr.110121-1719)" ORIGINAL_FILENAME="SHELL32.DLL" INTERNAL_NAME="SHELL32" LEGAL_COPYRIGHT="© Microsoft Corporation. Alle rechten voorbehouden." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0x8265EE" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="6.0.2900.6072" UPTO_BIN_PRODUCT_VERSION="6.0.2900.6072" LINK_DATE="01/21/2011 14:44:07" UPTO_LINK_DATE="01/21/2011 14:44:07" VER_LANGUAGE="Nederlands (Nederland) [0x413]" />
    <MATCHING_FILE NAME="user32.dll" SIZE="580096" CHECKSUM="0x5CB34805" BIN_FILE_VERSION="5.1.2600.5512" BIN_PRODUCT_VERSION="5.1.2600.5512" PRODUCT_VERSION="5.1.2600.5512" FILE_DESCRIPTION="DLL-bestand voor Windows XP USER API-client" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Besturingssysteem Microsoft® Windows®" FILE_VERSION="5.1.2600.5512 (xpsp.080413-2105)" ORIGINAL_FILENAME="user32" INTERNAL_NAME="user32" LEGAL_COPYRIGHT="© Microsoft Corporation. Alle rechten voorbehouden." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0x990A8" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="5.1.2600.5512" UPTO_BIN_PRODUCT_VERSION="5.1.2600.5512" LINK_DATE="04/14/2008 17:01:56" UPTO_LINK_DATE="04/14/2008 17:01:56" VER_LANGUAGE="Nederlands (Nederland) [0x413]" />
    <MATCHING_FILE NAME="wininet.dll" SIZE="916480" CHECKSUM="0xD7FE2543" BIN_FILE_VERSION="8.0.6001.19019" BIN_PRODUCT_VERSION="8.0.6001.19019" PRODUCT_VERSION="8.00.6001.19019" FILE_DESCRIPTION="Internet Extensions for Win32" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Windows® Internet Explorer" FILE_VERSION="8.00.6001.19019 (longhorn_ie8_gdr.101217-1700)" ORIGINAL_FILENAME="wininet.dll" INTERNAL_NAME="wininet.dll" LEGAL_COPYRIGHT="© Microsoft Corporation. All rights reserved." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0xE8C24" LINKER_VERSION="0x60000" UPTO_BIN_FILE_VERSION="8.0.6001.19019" UPTO_BIN_PRODUCT_VERSION="8.0.6001.19019" LINK_DATE="12/20/2010 23:52:41" UPTO_LINK_DATE="12/20/2010 23:52:41" VER_LANGUAGE="Engels (Verenigde Staten) [0x409]" />
    <MATCHING_FILE NAME="winsock.dll" SIZE="2864" CHECKSUM="0x73AE8088" BIN_FILE_VERSION="3.10.0.103" BIN_PRODUCT_VERSION="3.10.0.103" PRODUCT_VERSION="3.10" FILE_DESCRIPTION="Windows Socket 16-Bit DLL" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Microsoft® Windows(TM) Operating System" FILE_VERSION="3.10" ORIGINAL_FILENAME="WINSOCK.DLL" INTERNAL_NAME="WINSOCK" LEGAL_COPYRIGHT="Copyright © Microsoft Corp. 1981-1996" VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x10001" VERFILETYPE="0x2" MODULE_TYPE="WIN16" S16BIT_DESCRIPTION="BSD Socket API for Windows" S16BIT_MODULE_NAME="WINSOCK" UPTO_BIN_FILE_VERSION="3.10.0.103" UPTO_BIN_PRODUCT_VERSION="3.10.0.103" VER_LANGUAGE="Engels (Verenigde Staten) [0x409]" />
</EXE>
<EXE NAME="kernel32.dll" FILTER="GRABMI_FILTER_THISFILEONLY">
    <MATCHING_FILE NAME="kernel32.dll" SIZE="1030656" CHECKSUM="0x1B46B288" BIN_FILE_VERSION="5.1.2600.5781" BIN_PRODUCT_VERSION="5.1.2600.5781" PRODUCT_VERSION="5.1.2600.5781" FILE_DESCRIPTION="DLL-bestand voor Windows NT BASE API-client" COMPANY_NAME="Microsoft Corporation" PRODUCT_NAME="Besturingssysteem Microsoft® Windows®" FILE_VERSION="5.1.2600.5781 (xpsp_sp3_gdr.090321-1317)" ORIGINAL_FILENAME="kernel32" INTERNAL_NAME="kernel32" LEGAL_COPYRIGHT="© Microsoft Corporation. Alle rechten voorbehouden." VERFILEDATEHI="0x0" VERFILEDATELO="0x0" VERFILEOS="0x40004" VERFILETYPE="0x2" MODULE_TYPE="WIN32" PE_CHECKSUM="0x101480" LINKER_VERSION="0x50001" UPTO_BIN_FILE_VERSION="5.1.2600.5781" UPTO_BIN_PRODUCT_VERSION="5.1.2600.5781" LINK_DATE="03/21/2009 14:09:59" UPTO_LINK_DATE="03/21/2009 14:09:59" VER_LANGUAGE="Nederlands (Nederland) [0x413]" />
</EXE>
</DATABASE>

Any idea what this could be !?!? I googled but couldn't find a good answer !!