Yes, if you delete the DLL.XML file ( and the EXE.XML file as well ), our installer will recreated one that is surely correct. But it wouldn't included any other module except ours so, it might be best do this only if you are willing to reinstall the other addons that adds their own modules.
@Ricksstix2:
I think it's just easier if you fix your DLL.XML file yourself. If you open it in Notepad, you'll see there are random characters in the last line, below the closing </SimBase.Document> Tag. You can confirm this file is corrupted, because if you try to open it with Internet Explorer, it will give you an error.
Delete the random chars, and leave the last line with </SimBase.Document> intact, save the file and you should be set.
Basically, if you can open it in Internet Explorer, the file is legal XML