"Can't find PInvoke DLL 'dbnetlib.dll'."

every time when I opened the connection from my windows CE4.2 device to sql server I got the error "Can't find PInvoke DLL 'dbnetlib.dll'.

My OS is MS CE4.2, I've installed Compact Framework 2.0 and SQL client. It worked fine at OS CE5.0 but not at CE4.2. My application is working correctly, but when I started the connection I received this error.

Any idea?

thanks, Jan

If you indeed have SQL Client installed properly, I would guess some dependencies required for it to function are missing from the OS image. Contact device OEM for help.