Accidentally deleted windows installer in my vista system

[Guest]

Hello,I have deleted the windows installer file mistakenly in my windows vista system, now i an unable to do any updates for other packages. Please let me know how do i go about

 

[buwish]

Have a look here:

http://www.microsoft.com/downloads/en/details.aspx?FamilyID=5a58b56f-60b6-4412-95b9-54d056d6f9f4&displaylang=en