UDC_Setup.exe is a WiX Burn bootstrapper that installs the underlying
MSI cleanly with /quiet but the wrapper process never exits - waits on
a bundled child service that doesn't return control. Empirically:
DisplayVersion=1.0.34 + UDC.exe present in C:\Program Files\UDC after
~30s, but Process.WaitForExit blocks indefinitely (>5 min observed).
EXE handler now honors optional WaitTimeoutSec on the manifest entry.
After timeout, kills the wrapper, re-runs Test-Installed; if detection
passes, treats as success (rc 0); if fail, surfaces as -2 (distinct
from -1 Process.Start failure). Default unset = old behavior (block
forever via WaitForExit) so existing entries unaffected.
Pairs with UDC manifest entry update on the v2 share:
InstallArgs: "West Jefferson" 9999 -> /quiet /norestart
+ WaitTimeoutSec: 120
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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