I have put in the registry file and the mod installer now work. However, when I first tried to install a mod (m-60 english version), I got a pop-up window that said that the file was corrupted. I re-installed it, but I got the same message so I tried another mod (m-60 beta). I got the same results from that mod. Not to be discouraged, I then tried two other mods (the NYC mod and the US Army mod) and the same window just kept popping up. I use 7-zip and I have the 911: First Responders download from Amazon. I also had to change the directory to "Computer/Local Disk (D:)/Emergency 4/911 - First Responders" due to a lack of memory in the default directory. Do I need to change the .reg file to account for the directory change or are the mods getting corrupted because of the download? Thank you if can help.