ILMerge is a utility for merging multiple .NET assemblies into a single .NET assembly. It works on executables and DLLs alike and comes with several options for controlling the processing and format of the output. See the accompanying documentation for details.

Usage: ilmerge [/lib:directory]* [/log[:filename]] [/keyfile:filename [/delaysign]] [/internalize[:filename]] [/t[arget]:(library|exe|winexe)] [/closed] [/ndebug] [/ver:version] [/copyattrs [/allowMultiple] [/keepFirst]] [/xmldocs] [/attr:filename] [/targetplatform:<version>[,<platformdir>] | /v1 | /v1.1 | /v2 | /v4] [/useFullPublicKeyForReferences] [/wildcards] [/zeroPeKind] [/allowDup:type]* [/union] [/align:n] /out:filename <primary assembly> [<other assemblies>...]

ILMerge is packaged as a console application. But all of its functionality is also accessible programmatically. Note that Visual Studio does allow one to add an executable as a reference, so you can write a client that uses ILMerge as a library.

ILMerge takes a set of input assemblies and merges them into one target assembly. The first assembly in the list of input assemblies is the primary assembly. When the primary assembly is an executable, then the target assembly is created as an executable with the same entry point as the primary assembly. Also, if the primary assembly has a strong name, and a .snk file is provided, then the target assembly is re-signed with the specified key so that it also has a strong name.

Note that anything that depended upon any of the names of the input assemblies, e.g., configuration files, must be updated to refer instead to the name of the target assembly.

Any Win32 Resources in the primary assembly are copied over into the target assembly.

The license of this software is Freeware, you can free download and free use this system utility software.