Jim,

>Newbie here. I'm attempting to install MM 4.0 on my Windows Vista machine and when I run the installation .msi file it gives me the following error:
>
> Error 1001. Object reference not set to an instance of an object.
>
>I have no idea what this means. I looked for a thread about this but it didn't fit the initial installation that I'm on. Can anyone help me get past this so I can get going?
>
>Thanks!
>Jim

Be sure to either turn off the UAC or right click the installer file and choose run as administrator. I suspect that is what causes your problem. This is documented in the dev guide under the Installation section.
Tim