Open your windows based mobile project in Visual Studio.
Right-click on your solution in the Solution Explorer . Click Add then New Project.
In the Add New Project dialog box, in the Project Types pane, open the Other Project Types node, click Setup and Deployment Projects, then click Setup Wizard in the Templates pane.
Click OK to close the dialog box.
The Setup Wizard dialog box opens.
Click Next when you have read the introduction screen.
On the Choose Project Type panel, select Create a setup for a Windows application and click Next.
On the Choose project outputs to include panel, check Primary output from.... and click Next.
On the Choose files to include panel, click Add , then navigate to the bin output directory for your compiled application. Select the native windows mobile library (ESRIMobile92.dll) and click Open. The file is added to the panel. Click Next.
Review the Create Project panel and click Finish.
The setup project is added to your solution.
Examine the properties for the setup project. The Manufacturer and ProductName properties determine the program files menu and submenu items when the application is installed. Change these to meet your requirements.
Build the solution, click Build from the main menu then Build Solution.
At this point, I am submitting a support ticket to ESRI. I will let you know what they come say.