PXE Server

Does anyone knows how the PXE server works?

Now with the latest version of ABR11.5 I mis some files, this is causing, that I cannot start ABR11.5 from the PXE server. The menu appears when booting from the PXE but once I click the button I get a error for the ramdisk and kernel file error.

If I create a bootable media on the PXE server I see the following in the log file:

If you look at a part of the log file, you see that the file F399E0CCA is copied and should be present underneath the bootmenu directory of the PXE server, but it's not there and causing the ramdisk and kernal to fail.

If I copy the missing files (from a old backup I had), I can boot from the PXE server and start acronis.

Please help me.