'Official' DLL Patches for CE 2.11

I have had this kicking around for years as I lost it and rediscovered it this morning by accident. Instead of losing it again, I've put it into the DLC.

https://www.hpcfactor.com/downloads/3014/Windows_CE_2.11_Platform_Bu...

Allegedly this contains official DLL updates for CE 2.11, now I know nothing about these so perhaps someone feeling brave wants to have a play and try to clear up the mystery?

The DHCP one could be interesting if it is indeed newer than any ROM version as I know a lot of people are having problems with DHCP.

Equally mysterious is the softkb.dll - my initial thought was that these might be a PsPC file set, however that makes no sense given the number of CPU's targeted here, plus, the DLL makes no reference to aygshell at all.
It seem to export:
SIP_Close
SIP_Deinit
SIP_IOControl
SIP_Init
SIP_Open
SIP_PowerDown
SIP_PowerUp
SIP_Read
SIP_Seek
SIP_Write

If anyone wants to have a go, please post back here - but have a backup in case it forces a hard reset.

Why would a software keyboard control need aygsbell.dll when it only occupies a small portion of even the Palm-size PC display, and has no menu bar nor even a title bar?

I would assume for message dispatch and state awareness with the shell

So when one uses these, do you simply copy->replace the existing copies in ROM? Or do you have to register the Dlls too?

I would do both