fail to run command when using string variable to hold parameter

Hi,

i am pretty new to power shell.

i am working with it to configure vmware machine.

the following code works:

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

PS C:\Users\nir.s> $object = Get-networkadapter -vm "windows_2008_#1"
PS C:\Users\nir.s> $object

Name                 Type       NetworkName  MacAddress         WakeOnLan
                                                                  Enabled
----                 ----       -----------  ----------         ---------
Network adapter 1    e1000      WAN and MGMT 00:50:56:09:00:22       True
Network adapter 2    e1000      Nirs Net     00:50:56:09:00:22       True


PS C:\Users\nir.s> Set-NetworkAdapter -networkadapter $object[1] -macaddress '00:50:56:09:00:42' -confirm:$false

Name                 Type       NetworkName  MacAddress         WakeOnLan
                                                                  Enabled
----                 ----       -----------  ----------         ---------
Network adapter 2    e1000      Nirs Net     00:50:56:09:00:42       True

//////////////////////////////////////////////////////////////

but if i do the following it fail ( just use string variable $cc to hold the parameter)

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

PS C:\Users\nir.s> $cc = "-macaddress '00:50:56:09:00:43'"
PS C:\Users\nir.s>

PS C:\Users\nir.s> Set-NetworkAdapter -networkadapter $object[1] $cc -confirm:$false
Set-NetworkAdapter : A positional parameter cannot be found that accepts argument '-macaddress '00:50:56:09:00:43''.
At line:1 char:19
+ Set-NetworkAdapter <<<<  -networkadapter $object[1] $cc -confirm:$false
    + CategoryInfo          : InvalidArgument: (:) [Set-NetworkAdapter], ParameterBindingException
    + FullyQualifiedErrorId : PositionalParameterNotFound,VMware.VimAutomation.ViCore.Cmdlets.Commands.VirtualDevice.SetNetworkAdapter

PS C:\Users\nir.s>

///////////////////////////////////////

Many thanks.

Nir