Your tool has created an ISO of 26100.1 successfully. It does boot and install some SKUs EnterpriseG can't be installed - neither if I don't select key (it fails to auto choose key), nor if I specify G key from products.ini (doesn't accept it) EnterpriseGN accepts key and installs.
EnterpriseG is intended for OEM CMGE, no regular License Agreement. You have to add it for OOBE, or use unattend.xml.
The update for 26100 will always support LTSC and no modifications are required. You can install it directly. Subsequent updates will be automatically installed from WU.
A bit late to the party but finally I made a IoT 25938.763. Seem working nicely. Better than the ugly 26100 that has a bunch of changes in domain networking, that make it useless for me. Better than 25941 that has the hosted network broken Too bad all 253xx builds have the problem of vmware not working if hyper-v is running (you need older builds for that, or a build starting from 259xx) On the other hand Virtualbox that has problem with all insider preview builds, works perfectly here @zwl29107 Thanks for your scripts/packages/effort. Perhaps, did you make the scripts / packages to get server standard as well? I didn't read extensively three months of thread.