WinPE 4 is missing ALTIRIS_PXE_SERVER sytem variable

Dear Connect,

one of our customers has updated his DS 6.9 to SP6.

In his scripts he uses the system variable %ALTIRIS_PXE_SERVER% to get large files from the local PXE server instead of the deployment share on the DS.

This variable is not created in WinPE4 anymore so his installations are failing.

Does anyone know whether this variable has been replaced by something or if this works as designed and the variable has gone with WinPE 4?

Thanks in advance!