[Problem] Exception when trying to launch Redumper or DiscImageCreator #869

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opened 2026-01-29 16:23:38 +00:00 by claunia · 0 comments

claunia commented 2026-01-29 16:23:38 +00:00

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Originally created by @DMala on GitHub (Nov 9, 2025).

Originally assigned to: @mnadareski on GitHub.

Version
What version are you using?

• Stable release (3.5.0)
• WIP release (version here)

Build
What runtime version are you using?

• .NET 9.0 running on Windows 11 Build 26100

Describe the issue
I receive the following error when trying to start a dump with Redumper or DiscImageCreator.

Remote version: 3.5.0
You have the newest version!
Starting dumping process... please wait!
Look for the separate command window for more details
Executing Redumper... please wait!
System.ComponentModel.Win32Exception (1223): An error occurred trying to start process 'Programs\Redumper\redumper.exe' with working directory 'D:\MPF'. The operation was canceled by the user.
   at System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo)
   at MPF.ExecutionContexts.BaseExecutionContext.ExecuteInternalProgram()
   at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
   at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
--- End of stack trace from previous location ---
   at MPF.Frontend.DumpEnvironment.Run(Nullable`1 mediaType, IProgress`1 progress)
   at MPF.Frontend.ViewModels.MainViewModel.StartDumping()

To Reproduce
Steps to reproduce the behavior:

1. Launch MPF
2. Insert a disc to dump. Tested with NFS: Pro Street on PS2, but disc doesn't seem to matter.
3. Note that disc scans and is correctly identified
4. Click 'Start Dumping'

Expected behavior
Redumper or DiscImageCreator launches and dumping begins

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context

• Validated that the .NET 9.0 runtime is installed
• Tried with 3.4.2, and with the latest rolling build
• Tried running as Administrator
• Tried disabling Windows anti-virus
• Tried enabling all security permissions for the folder
• Tried a different folder/drive
• Same result in all cases

Originally created by @DMala on GitHub (Nov 9, 2025). Originally assigned to: @mnadareski on GitHub. **Version** What version are you using? - [x] Stable release (3.5.0) - [ ] WIP release (version here) **Build** What runtime version are you using? - [x] .NET 9.0 running on Windows 11 Build 26100 **Describe the issue** I receive the following error when trying to start a dump with Redumper or DiscImageCreator. ``` Remote version: 3.5.0 You have the newest version! Starting dumping process... please wait! Look for the separate command window for more details Executing Redumper... please wait! System.ComponentModel.Win32Exception (1223): An error occurred trying to start process 'Programs\Redumper\redumper.exe' with working directory 'D:\MPF'. The operation was canceled by the user. at System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo) at MPF.ExecutionContexts.BaseExecutionContext.ExecuteInternalProgram() at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state) --- End of stack trace from previous location --- at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread) --- End of stack trace from previous location --- at MPF.Frontend.DumpEnvironment.Run(Nullable`1 mediaType, IProgress`1 progress) at MPF.Frontend.ViewModels.MainViewModel.StartDumping() ``` **To Reproduce** Steps to reproduce the behavior: 1. Launch MPF 2. Insert a disc to dump. Tested with NFS: Pro Street on PS2, but disc doesn't seem to matter. 3. Note that disc scans and is correctly identified 4. Click 'Start Dumping' **Expected behavior** Redumper or DiscImageCreator launches and dumping begins **Screenshots** If applicable, add screenshots to help explain your problem. **Additional context** * Validated that the .NET 9.0 runtime is installed * Tried with 3.4.2, and with the latest rolling build * Tried running as Administrator * Tried disabling Windows anti-virus * Tried enabling all security permissions for the folder * Tried a different folder/drive * Same result in all cases

claunia added the bug label 2026-01-29 16:23:38 +00:00

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Reference: SabreTools/MPF#869