Can I find for what purpose a .NET dll was created by looking at a file?

Question

I have a bit of a mess with projects coming in 4.0 to 3.5

Is it possible to find out which version of .NET the dll was built in a file (not from the code!)?

Answer 1

You can use ildasm.exe :

ildasm assembly.dll

Then double-click MANIFEST and see the version:

• Metadata version: v4.0.30319 (CLR 4.0, which means .NET 4.0)

• Metadata version: v2.0.50727 (CLR 2.0, which means .NET 2.0 to .NET 3.5)

Answer 2

Ildasm (supplied with VS) can show you which version of the DLL modules they reference.

Answer 3

, dll Assembly ImageRuntimeversion

http://msdn.microsoft.com/en-us/library/system.reflection.assembly.imageruntimeversion.aspx