.NET enable and disable Fusion log to investigate assembly loading issues
Posted by jpluimers on 2015/08/18
Had to investigate some Assembly Loading issues, so I wrote two batch files to enable and disable the .NET Fusion Log:
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| reg add "HKLM\Software\Microsoft\Fusion" /v EnableLog /t REG_DWORD /d 0 /f |
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| reg add "HKLM\Software\Microsoft\Fusion" /v EnableLog /t REG_DWORD /d 1 /f |
They modify the HKLM\Software\Microsoft\Fusion key REG_DWORD value EnableLog.
A few notes:
- It is very important to turn of the Fusion log settings as soon as you are finished investigating. Fusion logs potentially take a lot of resources.
- When you have a .NET host like ISS, you have to restart that host (for instance by running iisreset)
- There is also Fuslogvw.exe Assembly Binding Log Viewer, but I like logging over viewing as logs are persistent.
- There are more values under
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fusionyou can configure; see the answer by Gary Kindel on StackOverflow:DWORD ForceLogset value to 1DWORD LogFailuresset value to 1DWORD LogResourceBindsset value to 1String LogPathset value to folder for logs e.g. C:\FusionLog\ (ensure the final backslash is there and the folder exists).
–jeroen
via:
- .NET enable and disable Fusion log.
- Answers to c# – How to enable assembly bind failure logging Fusion in .NET – Stack Overflow:
- Answer by user32736.
- Answer byMike Goatly.
- Answer by Gary Kindel.
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