[vbscript] Permission denied on CopyFile in VBS

Based upon your source variable (sourcePath = "C:\Minecraft\bin\") I suspect your hard code is pointing at the wrong place

fso.CopyFile "C:\Minecraft\options.txt", destinationPath, false

should be

fso.CopyFile "C:\Minecraft\bin\options.txt", destinationPath

or

fso.CopyFile sourcePath & "options.txt", destinationPath