Getting Harmony to work in IIS 4 with AppInit

[stevenroman760]

Hello,

I wrote my own Harmony code to override some code that runs in IIS. The app pool is .net 4, classic pipeline, I've added the 0Harmony.dll, pdb and unedited 0Harmony.xml to the bin folder under my application in IIS. My dll name is App_Init.dll because I thought that is what it needed to be for IIS to pick it up on startup. In the constructor I instantiate the Harmony library and run patchAll. I've got a try catch around that with logging to a file but I never see my log file get generated. I don't have the ability to debug locally because this is a silverlight app and there are certs involved, any idea why I'm not getting any logging?

This is kind of a passion project but it looks so fun I just wish I could get it to work or at least give me a log as to what exception is being thrown but it seems IIS has no idea I want my AppInit to run. Thoughts?

Thanks,
Steven

[pardeike]

Hello, I am not familiar with running custom code in IIS. So unless you can get the Harmony initialisation running, I cannot help you. I would suggest visiting a dedicated IIS forum or the C# discord. Regards, Andreas Pardeike

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On Fri, Jul 11, 2025 at 10:27 PM stevenroman760 ***@***.***> wrote: Hello, I wrote my own Harmony code to override some code that runs in IIS. The app pool is .net 4, classic pipeline, I've added the 0Harmony.dll, pdb and unedited 0Harmony.xml to the bin folder under my application in IIS. My dll name is App_Init.dll because I thought that is what it needed to be for IIS to pick it up on startup. In the constructor I instantiate the Harmony library and run patchAll. I've got a try catch around that with logging to a file but I never see my log file get generated. I don't have the ability to debug locally because this is a silverlight app and there are certs involved, any idea why I'm not getting any logging? This is kind of a passion project but it looks so fun I just wish I could get it to work or at least give me a log as to what exception is being thrown but it seems IIS has no idea I want my AppInit to run. Thoughts? Thanks, Steven — Reply to this email directly, view it on GitHub <#684>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAGQMUBLZBW4FSFONFUQTND3IAMZPAVCNFSM6AAAAACBKWZE5GVHI2DSMVQWIX3LMV43ERDJONRXK43TNFXW4OZYGU3DSNBYGE> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>