Code:
<!-- Task Manager "X" -->
<characteristictype="HKCU\Software\HTC\TaskManag er ">
<parmname="EnableTapAndHold"value="0"datatype="i nt eger"/>
</characteristic>
I created this one that you copied however somewhere along the way it put spaced in your text that shouldn't be there. It should be:
Always check your code in a browser to make sure it comes up. If there is an error it won't come up correctly and you'll need to fix it.