Microsoft installer? error

for a couple of weeks now when ever i try to install any app that needs the Microsoft installer i get the message 1719 error system could not find installer or installer not registered or installer corrupt i goggle it and it seems a lot of people have the same problem and most of them say that the two answers that they have posted didn’t work anyone had this problem and found a real fix i am running win xp service pack 3 thanks for the help

Look here, please: and

Windows installer 4.5:


thanks i will see if i can try some of the stuff in these guide thanks for the reply