How To: Turn off Strong Name Validation
Syed Aslam Basha here. I am a tester on the Information Security Tools team.
In one of my testing projects I faced the issue of “strong name validation failed” for an assembly and had to figure out a way to turn off strong name validation so that I could carryout testing on the given assembly while dev marched on towards a final build.
The actual error is
“Unhandled exception: System.IO.FileLoadException: Could not load file or assembly ‘application name, version=22.214.171.124, culture=neutral, publickeytoken=b03f5f7f11d50a3a’ or one of its dependencies. Strong name validation failed.<Exception from HRESULT: 0x8013141A>”
Steps to Turn Off Strong Name Validation:
Launch visual studio command prompt in admin mode and run the following command
sn –Vr *,b03f5f7f11d50a3a
-Vr <assembly> [<userlist>] [<infile>]
Register <assembly> for verification skipping (with an optional, comma separated list of usernames for which this will take effect and an optional test public key in <infile>).
<assembly> can be specified as * to indicate all assemblies or *,<public key token> to indicate that all assemblies with the given public key token. Public key tokens should be specified as a string of hex digits.
Similarly you can remove verification skipping entries,
sn –Vu *,b03f5f7f11d50a3a
Unregister <assembly> for verification skipping. The same rules for <assembly> naming are followed as for -Vr.
Remove all verification skipping entries.