Question

Can anyone help me out, how to detect if MSXML parser is installed on a machine or not. I looked for a registry entry,but unable to get one. I am writing a VB.NET application. Thanks in advance :)

Answer 1

One way you can do it is to create an instance of one of the MSXML objects in your code. e.g.

Dim t As Type
Dim o As Object

  If this code causes an exception the object doesn t exist
t = Type.GetTypeFromProgID("MSXML2.DOMDocument")
o = Activator.CreateInstance(t);
System.Runtime.InteropServices.Marshal.ReleaseComObject(o)

I apologize if my vb.net code is bad :)

Answer 2

I would check if these files exists and check the version.

Or I would use this

Or maybe there is a better way?

Answer 3

If possible, target MSXML 3.0. It s included in all Windows operating systems starting with Win2k SP4, so there s usually no need to check for it s presence.

Anyway, if you are using VB.NET, consider using the System.Xml namespace instead. It is part of the .net framework, which is needed by your VB.NET application anyway.

Answer 4

One thing to notice is that The use of MSXML is not supported in .NET applications since the GC inside MSXML is not compatible with .Net framework.

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