I have also trouble installing (update from 3.5.10) paint net 3.5.11 , this is the information which appears:
System.ComponentModel.Win32Exception: MsiOpenDatabaseW (110) bei PaintDotNet.Setup.Msi.ThrowIfFailed(UInt32 retVal, String message) in D:\src\pdn\pdn_3_5_11\src\SetupFrontEnd\Msi.cs:Zeile 31. bei PaintDotNet.Setup.Msi.SetMsiTargetPlatform(String msiPath, ProcessorArchitecture architecture) in D:\src\pdn\pdn_3_5_11\src\SetupFrontEnd\Msi.cs:Zeile 267. bei PaintDotNet.Setup.InstallingPage.<DoInstallation>d__21.MoveNext() in D:\src\pdn\pdn_3_5_11\src\SetupFrontEnd\InstallingPage.cs:Zeile 1076. bei PaintDotNet.Threading.IterativeTask.IterativeTaskAnon.<OnExecute>d__0.MoveNext() in D:\src\pdn\pdn_3_5_11\src\Core\Threading\IterativeTask.cs:Zeile 36. bei PaintDotNet.Threading.IterativeTask`1.<>c__DisplayClass1.<StepTask>b__0() in D:\src\pdn\pdn_3_5_11\src\Core\Threading\IterativeTask`1.cs:Zeile 77.