Windows 7 using Local Administrator account

Hello,
I have a Dell laptop ( Dell Latitude E4310 ) installed with Windows 7 Professional 32 bit and have 4 GB RAM and 320 GB HDD. The laptop is actually used by another person for daily activities, while I use a desktop for work. I have created a Windows Server ( Windows Server 2003 ) for Active Directory and joined both desktop and laptop to the domain.
Recently, the user wanted to install some updates, provided by several applications such as updating java and flash player and other applications as well. Windows 7 always asks user name and password for the administrator, so it can install the updates needed. And the user always asking me on how to do that, without actually having to come to me to install the updates. This is because he is always traveling to some places and it would be hard to schedule a meeting with him.
Is there anyway, it can be done without me having to grant him the administrator rights for his account in Active Directory ? I mean if I create a local administrator account in the laptop, will he have some rights to the server as well, since I don't want him to be able to do that ?
I just want him to install applications in his laptop and not explore the server to his hearts content.
Regards,
Michael
