Powershell ForEach-Object : Cannot bind parameter

Question

I am trying to get the owner of a process using this code:

(Get-WmiObject -class win32_process | where{$_.ProcessName -eq 'explorer.exe'}).getowner() | Foreach-Object user | out-string

This works great under Windows 8 but in Windows 7 I get this message:

ForEach-Object : Cannot bind parameter 'Process'. Cannot convert the "user" value of type "System.String" to type "System.Management.Automation.ScriptBlock". At C:\Program Files (x86)\Advanced Monitoring Agent GP\scripts\9660.ps1:1 char: 108 + (Get-WmiObject -class win32_process | where{$_.ProcessName -eq 'explorer.exe' }).getowner() | Foreach-Object <<<< user | out-string + CategoryInfo : InvalidArgument: (:) [ForEach-Object], Parameter BindingException + FullyQualifiedErrorId : CannotConvertArgumentNoMessage,Microsoft.PowerShell.Commands.ForEachObjectCommand

score 2 · Answer 1 · edited Mar 25 '14 at 14:57

2

Please modify the user iterator and try on both 7 and 8:

(Get-WmiObject -class win32_process | 
    where{$_.ProcessName -eq 'explorer.exe'}).getowner() | 
    Foreach-Object {$_.user } | out-string

edited Mar 25 '14 at 14:57

kmarsh

3,103
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22

answered Mar 25 '14 at 14:31

Raf

308
1
8

MDMoore313 · Answer 2 · 2014-03-25T15:55:56.877

You can do this with line breaks:

gwmi win32_process | where ProcessName -Match "explorer" | foreach {$_.GetOwner().User | Out-String}

Or without

gwmi win32_process | where ProcessName -Match "explorer" | foreach {$_.GetOwner().User}

Remember to wrap your foreach 'script' inside {}'s.

For the sake of completeness I'll say this was done with Powershell 3.0, hence no {} for the where-object cmdlet, and no $_ for the ProcessName property.

Powershell ForEach-Object : Cannot bind parameter

2 Answers2