I have a cluster of 2 Windows Server 2003 R2 Enterprise Edition SP2 32-bit. This cluster runs Exchange Server 2003 SP2 apllication and some VBScripts. These scripts connect to Exchange via WebDAV. If any of these scripts runs on NODE1 all works fine, but if it runs on NODE2, i get an error Error: Access is denied. Code: 80070005 Source: msxml3.dll It doesn't depends on which node runs Exchange Server 2003 SP2 application. Example of code, which causes the error: Set objXML = CreateObject("msxml2.xmlhttp") objXML.Open "PROPFIND", strFullWebDAVPath, FALSE objXML.SetRequestHeader "Content-type:", "text/xml" objXML.SetRequestHeader "Depth", "0" strRequest = "<?xml version='1.0'?>" strRequest = strRequest & "<a:propfind xmlns:a='DAV:' xmlns:p='http://schemas.microsoft.com/mapi/proptag/'>" strRequest = strRequest & "<a:prop><p:x" & strSetting & "/></a:prop>" strRequest = strRequest & "</a:propfind>" objXML.send strRequest I get the error right after objXML.send strRequest line. Both nodes have IE6 installed. Both nodes have updates installed: Microsoft .NET Framework 1.1 -- Device Update 4.0 Microsoft .NET Framework 2.0 Service Pack 1 916783 MSXML 6.0 Parser 948496 940349-v3 934016 932755 At NODE1 i have also installed: Microsoft Visual C++ 2005 Redistributable 8.0.59193 FAR file manager 1.70 beta 5 build 1634 At NODE2 i have also installed: Microsoft Visual C++ 2005 Redistributable 8.0.56336 Microsoft Visual C++ 2005 Redistributable 8.0.50727.42 There are no other differences between nodes. http://kf.lj.ru

You might want to post this in the Development forum.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

OK, thanks, I've posted there.http://kf.lj.ru

I recognized that NODE2 had Internet Explorer Enchanced Security Configuration component enabled. I disabled it and now all works fine.http://kf.lj.ru

I recognized that NODE2 had Internet Explorer Enhanced Security Configuration component enabled. I disabled it and now all works fine. http://kf.lj.ru

Hi Kirill, Thanks for sharing.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.