XML DOM installation?

[mshen]

I use PHP 4.1.2 with appache server in windows2000.I try to install XML DOM in my pc.but it do not work now.please show me how to install it.I read some tutorial but it do not work.thanks a lot.

[mshen]

error message is here:

Fatal error: Call to undefined function: domxml_new_doc() in d:\program files\apache group\apache\htdocs\test\dom_test.php on line 2

Please help me.Thanks

[mshen]

I use phpinfo() test the functions.the page tell me DOM /XML is enabled.but why it do not support any xml dom function.please let me know how to test it and know if it support XML DOM or not.

Thanks