This is an example from msdn:
Mesh CubeMesh {
8; // 8 vertices.
1.000000;1.000000;-1.000000;, // Vertex 0.
-1.000000;1.000000;-1.000000;, // Vertex 1.
-1.000000;1.000000;1.000000;, // And so on.
...
Irrlicht seems to have problems with the comments at the end of the line. It complaines about a missing semicolon in the vertex area.
I am not very into the .x-Format, maybe the example of MS is wrong?
Criamon