We recent installed NAV2015 (CU63) on a new Windows server (VM). In f.e. invoices we get the error message "Could not load file or assembly 'Microsoft.MSXML'". I see that in directory c:\Windows\system32 and in c:\Windows\syswow64 the msxml3.dll and msxml6.dll are installed. I have register both dll's, but still I get the error message.