Multiterm can no longer be used with sdlx files

Hi, 

The problem occoured after updating Studio 2014 to SP2.

I have downloaded re-sign from the translationzone but installation not possible.

Windows 8 Error Message: Kann C:/ProgramFiles (x86)/common files/sdl/multierm/editor/lib/re-sign for multiterm 2014.exe nicht erstellen. Adminstratorprivilegien sind eventuell notwendig.

I have access to Administrator account, it is password protected, I know the password. Is there possibliy any other adminstrator account in windows which I cannot access?

Would be happy if anyone could help.