I am upgrading from SDL 2011 to SDL 2011 SP1 so as a 1st step I am able to successfully upgrade my DB ,now for step 2 I have started upgrading CMS by running “” after running the installer its says upgrade fails and give below message.
“Access to the path 'C:\Program Files (x86)\Tridion\bin\ChilkatDotNet2.dll_backup' is denied.”
I have cross checked and found that "Full control" is provided to Administration account.
Can you please guide me what went wrong here?