Facilitating the spread of knowledge and innovation in professional software development



Choose your language

InfoQ Homepage News Cecil and Reflexil Make Assembly Patching Easy

Cecil and Reflexil Make Assembly Patching Easy


Cecil, written by Jb Evain, is a strategic library for the Mono project. It provides introspection capabilities for a variety of projects including the Mono Debugger, the code inspection tool Gendarme, and MoMA, the Mono Migration Analyzer.

Cecil also has the ability to manipulate compiled CIL and save the modified assemblies to disk. Sébastien has leveraged these capabilities by creating an assembly editor called Reflexil. Reflexil runs a plug-in for Lutz Roeder's Reflector, a tool which is fast becoming a cornerstone for .NET developers.

Though still in the early stages, Reflexil is functional and can be downloaded in both source code and binary format. And in case you are wondering, the source code is in English. 

We need your feedback

How might we improve InfoQ for you

Thank you for being an InfoQ reader.

Each year, we seek feedback from our readers to help us improve InfoQ. Would you mind spending 2 minutes to share your feedback in our short survey? Your feedback will directly help us continually evolve how we support you.

Take the Survey

Rate this Article


Hello stranger!

You need to Register an InfoQ account or or login to post comments. But there's so much more behind being registered.

Get the most out of the InfoQ experience.

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Community comments

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p


Is your profile up-to-date? Please take a moment to review and update.

Note: If updating/changing your email, a validation request will be sent

Company name:
Company role:
Company size:
You will be sent an email to validate the new email address. This pop-up will close itself in a few moments.