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Adding strong name to existing DLL

Written by at April 10, 2012

The dll should have strong name to let you add them to GAC. The procedure follow could help you signing the dll without using source.

You should do the following under Visual Studio Command shell.

  1. Create a key-pair 
    sn -k keyPair.snk
  2. Disassemble the dll 
    ildasm existing.dll /out:existing.il
  3. Rename the original dll 
    ren existing.dll existing.dll.orig
  4. Build the dll with key 
    ilasm existing.il /dll /key=keyPair.snk

Afterwards, you could install the dll into GAC by

gacutil /i existing.dll