I got the same error. Running windows 7. After clicking ok on the error seclect run as administrator. Worked for me.
PeegeeTips: stupid question perhaps; but what am i supposed to do with the GUI mod?
I have installed the widescreen mod.
I have downloaded the GUI mod, double clicked the .exe which extracted all the files to a folder in my download directory................ and that's it.
there are no instructions on the website, and the readme is singularly unhelpful.
what do i do with the GUI mod to make it mod my GUI?
i could extract the files into the main BG install folder................. but i'd prefer not to screw the entire install up for no good reason.
cheers
update - tried extracting to the BG install folder and got "access denied"