How to register .Dll to GAC ?

Question

I have only .dll file. I have assigned strong name to dll using ilasm command. I want to register it in GAC but i am getting following error:

Dll Name :DDayICal.dll

C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\NETFX 4.0 Tools>gacutil -i "C:\Users\Administrator\Desktop\DDayICal.dll.dll" Microsoft (R) .NET Global Assembly Cache Utility. Version 4.0.30319.1 Copyright (c) Microsoft Corporation. All rights reserved.

Failure adding assembly to the cache: The system cannot find the file specifie d.

Answer 1

Make sure the dll you downloaded matches your development machine as if both are for x86 processors or if they are for 64 bit, if that's fine then just drag and drop DDayICal.dll to Gac and do a IISReset, and reference it to your project as well, it should work straight away without giving an error for strong file name, however you should check these links out as they got similar type of problem,

http://stackoverflow.com/questions/6199246/how-to-show-a-reference-of-the-shared-assembly-in-the-net-add-reference-dialog

http://www.csharp411.com/adding-assemblies-to-the-visual-studio-add-reference-dialog/

http://stackoverflow.com/questions/2068159/could-not-load-file-or-assembly-microsoft-mshtml-strong-name-validation-fai

EDIT another way of resolving problem you got,

http://social.msdn.microsoft.com/Forums/pl/csharpgeneral/thread/435cd65e-48c3-4a1d-965f-191bd80e9896

Hope it helped :)