To play xilero you must download the ragray folder and the patch.
Click here to download the ragray folder download the first eight after your done extract the first one.
Click here then click downloads then click download xileropatchv4 25mb-.
When your done download both put the setup which you get from extracting the eight files then put in the patch folder. Then double click the setup and download then your done now you can play.
If you have window xp do these steps. After your done with the seteup download go into the file and copy all of it. Then paste it into the patch folder. After that you can play.