Failed to CreateInstance() - XML

[XiX]

Hello,

I make a setup project (C++) in .NET - OS WINNT.
Project works in debug _and_ in install mode on my PC.

Then I export this to another PC (OS WIN2000) to test the project, .NET framework installed.
There it fails on pointer_to_XMLDOMDoc->CreateInstance(); with an error:
ReadXMLDoc : Failed to instantiate an XML DOM document - Code = -2147221164

The code reads as follows:
IXMLDOMDocument2Ptr pXMLDom;
HRESULT hRes;

CoInitialize (NULL);

hRes = pXMLDom.CreateInstance(__uuidof(DOMDocument40));

if (FAILED(hRes)) {
sprintf(szErr, "ReadXMLDoc : Failed to instantiate an XML DOM document - Code = %d\n", hRes);
WriteXMLLog(szErr);
}

Strangely enough, it used to work on this PC, and now that it doesn't work anymore, I tested it on other PC's with WIN2000.
No problem there.

A search on the web gave me something about a bad install of a COM server.

Has anyone any clue on this? It's pretty urgent, since this has to be shown to a customer tomorrow :-)

Tnx a million!

[XiX]

OK, for anyone who might encounter this problem in the future:
As expected it was probably an overwritten dll somewhere that caused this problem.

After install of MDAC 2.7 (no change) I tried SOAP SP2.
This solved the problem.

X