<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** NA (Windows FMA workstream; follow-up to #49127,
which dropped DDPM)
Re-adds **Dell Display and Peripheral Manager**
(`Dell.DisplayAndPeripheralManager` 2.2.2.8) as a Windows
Fleet-maintained app, and adds a `requires_client_os` routing override
so its CI validation always runs on the `windows-11-arm` runner.
## Why DDPM was dropped before, and why it's viable now
DDPM was dropped from the earlier re-add because its InstallShield setup
aborted with `0x80042000` under every documented silent switch, which
was diagnosed at the time as a .NET-prerequisite/headless-chaining
problem. A new debug run with Dell's own `/CreateDebugLog` switch shows
the real cause: the setup evaluates the OS at `OFUIBefore` and
terminates because the runner reports **Microsoft Windows Server 2025**.
DDPM is a Windows 10/11 client application and refuses to install on
Server SKUs — which is exactly what GitHub's x64 `windows-latest` image
is.
```
OSetUMode() 0 AP:2.2.2.8
OFUIBefore
Os Major10 Minor0
OS - 44444
// End Log File...
```
## `requires_client_os` CI routing
- New optional winget input field `requires_client_os: true` (documented
in `ee/maintained-apps/README.md` and on the Go input struct; ignored by
ingestion).
- `.github/scripts/partition-fma-apps.sh` routes any app with this flag
to `windows-11-arm` — the only GitHub-hosted client-OS Windows runner —
regardless of `installer_arch`. The x64 installer runs there under Prism
emulation; DDPM's gate is the OS SKU, not the architecture.
- Verified locally: partitioning the full 421-app Windows catalog
reroutes only `dell-display-and-peripheral-manager/windows`.
## App identity (verified against the real installer)
- Downloaded `DDPM-Setup_2.2.2.8.exe` from `dl.dell.com` (Chrome UA per
#49123); SHA256 matches the winget manifest.
- Embedded InstallShield `[Application]` block: `Name=Dell Display and
Peripheral Manager`, `Company=Dell Technologies`; ProductCode matches
the manifest GUID. The setup log reports `AP:2.2.2.8` as the registering
version.
- Installs with Dell's documented managed-deployment switches `/Silent
/HeadlessMode=true /TelemetryConsent=false /TurnOffCA` — the final
pre-drop iteration (6d0f2c00af), which also declines telemetry and
disables DDPM's self-updater on Fleet-managed hosts. Uninstalls via
`msiexec /x` on the ProductCode looked up in the registry by
DisplayName.
Input/uninstall script/icon are restored from the pre-drop state; the
install script is the final pre-drop iteration with its root-cause
comment corrected (Server-SKU OS gate, not headless-SYSTEM chaining).
Output regenerated (winget still at 2.2.2.8; script refs verified).
# Checklist for submitter
If some of the following don't apply, delete the relevant line.
- [x] Input data is properly validated, `SELECT *` is avoided, SQL
injection is prevented (using placeholders for values in statements), JS
inline code is prevented especially for url redirects, and untrusted
data interpolated into shell scripts/commands is validated against shell
metacharacters.
- [x] Timeouts are implemented and retries are limited to avoid infinite
loops
## Testing
- [x] QA'd all new/changed functionality manually (partition script
exercised locally over the full catalog and a mixed PR-style slug list;
ingester regenerated with no output drift; `go test
./ee/maintained-apps/ingesters/winget/` passes)
- [ ] `test-fma-windows-pr-only` validates DDPM on the `windows-11-arm`
runner in this PR's CI
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added Dell Display and Peripheral Manager to the Windows software
catalog, including installation, uninstallation, detection, metadata,
and an app icon.
* Added support for routing applications that require a Windows client
operating system to the appropriate Windows 11 ARM test environment.
* **Documentation**
* Documented Windows client operating system routing behavior and test
environment architecture details.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Allen Houchins
bc3eee5f32