I have a new computer with Vista Premium. I discovered that my AVI video files will not play with Media Player, I get sound but not picture. Some research suggested that I needed to download and install a Codec package . I downloaded one that seems to be working well for other people. During the install I get the following error message:Error 1925 You do not have sufficient priviledges to complete this installation for all users of this computer. Log on as an administrator and try the install again. Well, there are only 2 accounts on this machine and I was logged in on the administrator account. Any suggestions would be appreciated.

Can you Right click the installation file and click on "Run as Administrator"

Thanks Hugh,

I'll give that a try and report back.

Has that changed in Vista? It always used to be that you had to hold the shift key down while right-clicking the file and choosing "Run As..." and then you choose the administrator account.

Since he was logged in as ADMIN I doubt those suggestions will work. What codec pack did you try to install? You mentioned AVI so I imagine you are talking XVID or DIVX right?

For the DIVX codecs get them at http://divx.com.
For the XVID codecs get them at http://www.koepi.org/xvid.shtml

Right clicking and using "Run as an Administrator" allowed the install to go through. As Jake pointed out since I was already logged in as an administrator I was surprised that it worked - guess it Vista needs to be really sure about things before it allows such an install. My AVI file now plays fine through Media Player. The package I downloaded was called Vista Codec Package V4.2.6

thanks for the help.