In a asp.net c# project hosted on iis how to edit dll file to small change in code?

Question

In a asp.net c# project hosted on iis how to edit dll file to small change in code?Without getting whole project and debug it and again hosting full project

patching single dll file is possible?

Answer 1

Hi @smita naik,

Hope this post can help you.

I think there are a few options you can try:

I think you can use ildasm.exe to disassemble the DLL you have, then fix the code, then use ilasm.exe to reassemble.

https://learn.microsoft.com/en-us/dotnet/framework/tools/ildasm-exe-il-disassembler

dnSpy:dnSpy is a debugger and .NET assembly editor. You can use it to edit and debug assemblies even if you don't have any source code available. https://github.com/dnSpy/dnSpy

ClickOnce deployment: with ClickOnce deployment, you can provide updates automatically. Only those parts of the application that have changed are downloaded, and then the full, updated application is reinstalled from a new side-by-side folder.

https://stackoverflow.com/a/9621161

https://learn.microsoft.com/en-us/visualstudio/deployment/clickonce-security-and-deployment?view=vs-2022

Best regards,
Lan Huang

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Answer 2

In a asp.net c# project hosted on iis how to edit dll file to small change in code?Without getting whole project and debug it and again hosting full project

I suggest that you use the Web Site Projects. See the following document for details:

Web Application Projects versus Web Site Projects

https://learn.microsoft.com/en-us/previous-versions/dd547590(v=vs.100)

"Advantages of the deployment strategy for Web site projects include the following: If you make a small change to a Web site, you do not have to redeploy the whole site. Instead, can copy just the changed file or files to the production IIS server. You can also edit files directly on the production server."