How To Backup and Restore Windows CE 5.0 ,net Thin clients

My company has several thin clients running Windows CE 5.0.net OS. Because it is a factory, it is very hot and dirty. We have had to reinstall the entire OS and apps several times on these thin clients. I am new to using Windows CE and would like to know how to backup and restore these computers. Are there any good resources for me to find out how to do this type of operation? Can anyone here tell me how it would be done?