DELLSDPCatalogPC no longer expands to single xml file.

it seems that  DELLSDPCatalogPC.cab  no longer expands to single  xml file.

Is this by design?

we were suing following  script with modifications to kick of   bios upgrades in OSD.

https://garytown.com/dell-bios-update-winpe-model-independent-from-internet