# Windows Display Driver Model
Windows Display Driver Model is a protocol, standard, or security technology recorded in [[Scanned_20260730-1706|Scanned_20260730-1706]]. In the reconstruction, WDDM 1.1 was the Windows 7-era display-driver model; Microsoft's update catalog still identifies Mobile Intel 4 Series Express WDDM 1.1 packages (Microsoft Update Catalog).
## Historical and Technical Context
[[Windows Display Driver Model|WDDM 1.1]] was the Windows 7-era display-driver model; Microsoft's update catalog still identifies Mobile Intel 4 Series Express WDDM 1.1 packages ([Microsoft Update Catalog](https://www.catalog.update.microsoft.com/Search.aspx?q=Mobile+Intel+4+series+Express+Chipset+wddm)). [[ISATAP|ISATAP]] tunnels IPv6 over IPv4 within an intranet. [[Remote Access Service|RAS]] asynchronous adapters and Microsoft Agile VPN are Windows virtual networking components.
## Role in Scanned_20260730-1706
This is a driver-enumeration page for a legacy Windows laptop: display compatibility, mobile-device association, VPN, and IPv6 transition/tunnel interfaces.
## Notebook Evidence
- [[Scanned_20260730-1706|Scanned_20260730-1706]], PDF page 34: Windows system information and tunnel adapters.
**Evidentiary status:** The page occurrence and transcription are notebook evidence. Technical identification follows the source reconstruction’s cited research. Co-occurrence does not by itself prove ownership, deployment, or a direct operational relationship.
## Relationships and Overlays
On the cited page or pages, Windows Display Driver Model appears with [[ISATAP|ISATAP]], [[Remote Access Service|RAS]]. These are page-level or reconstruction-level relationships, not automatic claims of dependency.
## Cross-Notebook Significance
This entity expands the collection’s recurring vertical method: begin with a visible product, name, or interface; identify the hidden control layer; then connect it to recovery, authority, evidence, or continuity without assuming a relationship that the page does not prove.
## Missed Signals and Open Leads
“RSA Async” is likely “RAS Async.” “Ai express Root” may be a misread device-tree label and needs a direct screenshot or system-information export.
## Sources
- [[Scanned_20260730-1706|Scanned_20260730-1706]], especially PDF page(s) 34.
- `Scanned_20260730-1706.pdf`, cited as a plain archival filename; the PDF is not linked from `wiki-notes`.
- External research citations used for identification remain preserved in the source reconstruction.
- [Microsoft Update Catalog](https://www.catalog.update.microsoft.com/Search.aspx?q=Mobile+Intel+4+series+Express+Chipset+wddm)