Hi,
I don't see any problem there. I assume you're getting your string "<ID Name = "Testing123"/>" from a logfile somewhere and then trying to print it, which should work just fine.
if you assign the string to a variable yourself or just want to print it like that, you'll need to escape the quotation marks with \. So you''d need to do: printf("<ID Name = \"Testing123\"/>")
Maybe I didn't understand your problem, if that this doesn't help, could you explain further and post your code?
-jon