Windows vista introduces the wonderful concept of User Account Control, which also exists on linux and should make your computer more safe.
Anyway I decided to let the UAC turned on and want to work through the extra clicks etc.
Today I needed Base4 again and when I tried to install the program it would go until it was almost complete and then it would come up with error 2869
the easy way around this was to create a .cmd file in the with the following line : msiexec /i “C:\Users\ivan\Downloads\SourceSetup-18.104.22.168.msi”
and execute that cmd file by right clicking it and chosing run as administrator