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How to retrieve the version number of a referenced assembly

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Them:  Michael, do you remember which version of X we used in framework release x.x.x.x?
Me [as always]: -euh- No…
Them: ?!@#$%#@%”>?@#$%#@%?@#$%#@%

There are multiple solutions to the above scenario. 

First, better document the release notes when releasing a new assembly (mental note ;-)).

Second, use a tool like reflector or ildasm to check the referenced version.

Here’s how…using reflector and a signed entlib version

  1. Open the assembly you want to check in reflector.
  2. Navigate to the dependent assembly in the References node (see figure)
  3. Click on the dependent assembly and retrieve the version number in the detail window

Checking the reference in Reflector

Or, using ildasm

  1. Open the assembly in the idasm toolIdasm - Manifest node
  2. Double-click on the MANIFEST node
  3. Search for the referenced assembly in the MANIFEST window.  The value next to “.ver” is the version number

Ildasm - Checking the version of a reference assembly 

The Installation

  1. Reflector can be found here
  2. Idasm is installed with the .NET framework SDK and/or after installing the Visual Studio environment (when selected).
    The tool itself can be found in the “%programfiles%\Microsoft Visual Studio 8\SDK\v2.0\Bin” directory
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Written by Michael

July 24, 2007 at 12:04 pm

Posted in .NET

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