error: 0x80040154

I just started to learn about programming for smartphones.
Environment: VS 2005 Beta2, .NET Framework 2.0
Windows Mobile 5.0 Smartphone SDK.

Questions: When I run the projects, there is always an error: 0x80040154.
It seems that I cannot connect the Emulator.Could you tell me how to deal with this problem?

[324 byte] By [cranewang] at [2008-2-15]
# 1
Probably the easiest way to resolve Beta2 deployment errors is to install the DMA connectivity patch from:

http://www.microsoft.com/downloads/details.aspx?FamilyID=0E05817F-08D6-48A2-A572-CF77ED72C5BE&displaylang=en

If that doesn't fix the problem completly, there might be something else that is wrong. This error code suggest that something is not registered. What type of application are you creating? How about if you try to use the "Connect to" item in the tools menu. Does the emulator come up? Is there any error?

CarlBrochu at 2007-9-9 > top of Msdn Tech,Smart Device Development,Device Emulator General...
# 2
I got a similar problem. When I try to deploy the smart device C# application to the emulator, an error messagebox pops up and says "no interface registered". Can you help me to solve it? thanks!
JackyCheng at 2007-9-9 > top of Msdn Tech,Smart Device Development,Device Emulator General...