Stability issues:
- Use CreateProcess instead of ShellExecute for background process launches.
- Remove the Helper MSI and MSP from Omaha3.
- Change the signing servers in Omaha OSS build.
Accessibility:
- Display Progress Text in the Title Bar.
- Omaha: Support Windows "High Contrast" modes.
Device Management
- Use new SimpleRequest for each DM error report.
- Send DM policy validation errors back to DM server.
- Omaha Enterprise: DMPolicyManager fallback not accurate in some case