C++ Xalan 1.3 problems

[Mahir Lokvancic]

Using C++ Xalan 1.3

I am having the following problem: Whenever I try to modify document
using "XalanNode->appendChild()" etc. I get an exception. I presume the
default behavior is that the tree is not allowed to be modified. How do
I get around it? I tried both Xerces and Xalan DOM supports, but both
fail. Thanks!