ok then you should entirely be able to make it work !
first did you installed the 2 addons linked in the readme file ? :
https://www.microsoft.com/en-us/download...aspx?id=35 and https://www.microsoft.com/en-us/download...x?id=30679 ? and rebooted completly your computer after those 2 install ? (when you do your install, make sure to install as an administrator)
what is the path you did installed your toolkit ? there is absolutely no space no undescore no other strange caracter ? like : C:\Banishedkit\ or D:\BanishedKit\
did you copy pasted the 4 .pgk files in your C:\BanishedKit\Bin\WinData\ folder ? ( data0.pkg data1.pkg patch0.pkg patch1.pkg )