Powershell running under a service hangs on *.zip CopyHere

Question 1

I’m running a Windows Service (Hudson) which in turn spawns a PowerShell process to run my custom PowerShell commands. Part of my script is to unzip a file using CopyHere. When I run this script locally, I see a progress dialog pop up as the files are extracted and copied. However, when this runs under the service, it hangs at the point where a dialog would otherwise appear.

Here’s the unzip portion of my script.

# Extract the contents of a zip file to a folder
function Extract-Zip {
    param([string]$zipFilePath, [string]$destination)
    if(test-path($zipFilePath))     {   
        $shellApplication = new-object -com shell.application

        $zipFile = get-item $zipFilePath
        $zipFolder = $shellApplication.NameSpace($zipFile.fullname)

        $destinationFile = get-item $destination
        $destinationFolder = $shellApplication.NameSpace($destinationFile.fullname)

        $destinationFolder.CopyHere($zipFolder.Items())
    }
}

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# Extract the contents of a zip file to a folder

function Extract-Zip {

param([string]$zipFilePath, [string]$destination)

if(test-path($zipFilePath)) {

$shellApplication = new-object -com shell.application

$zipFile = get-item $zipFilePath

$zipFolder = $shellApplication.NameSpace($zipFile.fullname)

$destinationFile = get-item $destination

$destinationFolder = $shellApplication.NameSpace($destinationFile.fullname)

$destinationFolder.CopyHere($zipFolder.Items())

}

I suspect that because its running under a service process which is headless (no interaction with the desktop), its somehow stuck trying to display a dialog.

Is there a way around this?

Question 2

If it’s still actual, I managed to fix this with having CopyHere params equal 1564.

So in my case extract zip function looks like:

    function Expand-ZIPFile{
    param(
    $file, $destination
    )
    $shell = new-object -com shell.application
    $zip = $shell.NameSpace($file)
    foreach($item in $zip.items())
    {
    $shell.Namespace($destination).copyhere($item,1564)
    "$($item.path) extracted"
    }

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function Expand-ZIPFile{

param(

$file, $destination

)

$shell = new-object -com shell.application

$zip = $shell.NameSpace($file)

foreach($item in $zip.items())

{

$shell.Namespace($destination).copyhere($item,1564)

"$($item.path) extracted"

}

1564 description can be found here – http://msdn.microsoft.com/en-us/library/windows/desktop/bb787866(v=vs.85).aspx:

(4) Do not display a progress dialog box.
(8) Give the file being operated on a new name in a move, copy, or rename operation if a file with the target name already exists.
(16) Respond with “Yes to All” for any dialog box that is displayed.
(512) Do not confirm the creation of a new directory if the operation requires one to be created.
(1024) Do not display a user interface if an error occurs.

Powershell running under a service hangs on *.zip CopyHere

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