Can't add iControll SnapIn

[Optokapler]

Hello,

I've registered this snapin with no issues, but when I want to add it to add it to powershell I get this:

PS C:\Program Files (x86)\F5 Networks> Add-PSSnapIn iControlSnapIn Add-PSSnapIn : Cannot load Windows PowerShell snap-in iControlSnapIn because of the following error: Could not load file or assembly 'iControlSnapin.dll' or one of its dependencies. The system cannot find the file specified. At line:1 char:1

• Add-PSSnapIn iControlSnapIn

• 
  - CategoryInfo          : InvalidData: (iControlSnapIn:String) [Add-PSSnapin], PSSnapInException
  - FullyQualifiedErrorId : AddPSSnapInRead,Microsoft.PowerShell.Commands.AddPSSnapinCommand

any idea what I'm missing