Application not exiting on Mobile Devices

Hi all,

I am actually developing an application for mobile devices using C# 2005 and the PDAs have windows mobile 5 running. During testing of the devices through active sync, when the application is exited it seems that there is still a process running on the device and the next time I try to deploy the application on the device for debugging VS says that there is a file which is already in use by another program something like :

"[Deployment and/or registration failed with error: ) 0x8973190e. Error writing file '%csidl_program_files%\[my path goes here]\tapilib.dll'. Error 0x80070020: The process cannot access the file because it is being used by another process.
".

In this case I need to warm boot the device to be able to deploy the application again.

I've tried using VS 2005 remote spy to check if there were any processes running on the device but could not find any which would indicate that a component is still running. Has anyone encountered this or anything know what could be the problem related to this issue please?

are you using application.exit when you closed the application?
forms run on their own thread so make sure that all forms are closed and disposed when you are finished with them

All forms are closed actually before doing application.exit but still seems to have this issue. Does this.Close() actually dispose the form or should the reference to the form be called to dispose?

well if you have it like this
Dim myform As new myform
myform.showdialog
myform.dispose

but i have noticed that if you reference some libraries such as opennetcf and use the batterymonitor, as i recently used, i had to actually dispose of it before the application.exit or else it wouldnt quit the application fully