Hello,
I am unable to install Windows Mobile Device Center on my Windows Vista
Business.

When I run drvupdate-x86.msi (MSI installer for Mobile Device Center),
an "unidentified program wants to access..." popup opens, where I allow
the program to execute. I see the gathering information screen, and
after that the program simply terminates. Without any messages,
warnings, ....

I double checked Control panel if Mobile Device Center is installed,
and that's the reason for installer not continuing. But it's not. I
also tried to install using Windows update with no success.

So I don't have any more ideas.

(btw. I am trying to synchronize with Device Emulator 1.0).

I have the very same problem: Windows Mobile Device Center will not install onto Vista Business. No erorr message is given. Microsoft.com does not list this as a product they support (!). The wireless company (Verizon Wireless) which sold me the phone containing the installation disk says only Microsoft can help with installation issues.

Did you get any response to your post?