Desktop "Application Installer" does not recognize Evo as connected. Why not?

[Sprockethead]

What mode do I need to be in? I assumed it would be as a mounted drive. The "next" button for installing an apk file is just dimmed out. This is on the window that launches if you open an .apk file from your desktop. It's called "Application Installer."

Is this working for everybody else?

Thanks.

 

[mapan83]

Are you trying to install HTCSync.exe?

 

[Sprockethead]

No - I bought a backup app from the market, but it got stuck while downloading somehow. So I just went to the company website and downloaded the .apk file from the website to my desktop. If you double-click on it, it brings up an installer wizard and asks you to connect the phone. But if you connect the phone it still does not see it.