I used the command: xcommodhelper -v -c ewconfig.xml x- "c:\program files (86)\steam\steamapps\common\xcom enemy within" It ran without error and said the patches were applied, but the program crashes on start. I think I have the checksum problem I recalled reading about. Error text is: "The application was unable to start correctly (0xc0000142)" I don't recall reading about a fix for that issue but I was looking for other information at the time. Can anyone point me to a fix for that? I'm sooo close to making this work.