Application showing error Microsoft MsXml is not installed

Question

My application made using C++ builder XE3. In my application i have done some xml parsing using XML.xmldoc.hpp

On XP machine when i run application it is showing me messagebox "Microsoft msxml is not installed".

Please can anyone help me??

Answer 1

The error message is a little misleading. It does not mean MSXML is not installed at all. MSXML uses COM, and the error message actually means the MSXML COM object could not be instantiated via CoCreateInstance() (and the MSXML DOMVendor for TXMLDocument attempts to instantiate several different versions of MSXML before giving up). That is a subtle but important distinction to make. For instance, if you are using the XMLDocument in a worker thread, you have to make sure you are calling CoInitialize/Ex() beforehand. C++Builder does that for you in the main UI thread, but you have to do it manually in a worker thread.

Answer 2

Problably you need to find the msxml6.dll installer ( standard with Windows 7)

XP worked with msxml4.0

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