No Apple Mobile Device Support, how to get it back?

I unstalled Apple Mobile Device Support since I thought I would get it back when I downloaded the latest version of itunes. Instead an error message came up; There is a problem with this Windows Installer package. A DLL required for this install to complete could not be run. Contact you rsupport personnel or package vendor. On viewing all programs to unstall/ delete/ or repair the Apple Mobile Device Support is not on the list. So I'm wondering how can i get Apple Mobile Device Support can be reinstalled when it's be deleted, and whether this can be done without downloading the most recent itunes and its related components. From the Control Panel I went to Programs and when I found itunes I clicked on repair to help with the Apple Mobile Device only to come across the following message, Service "Apple Mobile Device" failed to start. Verify that you have sufficient privileges to start system services with the following options cancel, retry, and ignore. How do I get Apple Mobile Device Support back where can I download it and not have to download the latest itunes?Much help appreciated! Thanks.