Remove Folder from ZIP file created by Power Shell Community Extensions - powershell

Question

All,
I am using Power Shell Community Extensions for PSv1 and the ZIP file is being created correctly. However, I only want the images in the ZIP file and I want to remove the folder from the ZIP file.
I have the folder called newpictures that is zipped up. I then use the -flattenpaths option in the Power Shell Community Extensions to put all the images in the base path, but the folder remains.
I have been searching online for a solution. I am not sure if I have this right, so can someone look over this code and let me know if this is correct before I proceed?
if (test-path $PSCXInstallDir) {
write-zip -path "Microsoft.PowerShell.Core\FileSystem::$TestSite" -outputpath "Microsoft.PowerShell.Core\FileSystem::$ZipFileCreationDir\$ZipFileName" -noclobber -quiet -flattenpaths -level 9
start-sleep -seconds 30
if (test-path $ZipFileCreationDir\$ZipFileName) {
$ShellApp = new-object -com shell.application
$TheZipFile = $ShellApp.namespace("$ZipFileCreationDir\$ZipFileName")
$TheZipFile.items() | where-object {$_.name -eq $FolderToCompress} | remove-item $FolderToCompress
}
}
The variables are:
$PSCXInstallDir = "C:\Program Files\PowerShell Community Extensions"
$TestSite = "\\10.0.100.3\www2.varietydistributors.com\catalog\newpictures"
$ZipFileCreationDir = "\\10.0.100.3\www2.varietydistributors.com\catalog"
$ZipFileName = "vdi-test.zip"
$FolderToCompress = "newpictures"
Thanks in advance for any feedback. In short, I just want to remove the single folder within the ZIP file.

Answer 1

Remove-Item won't work on items inside the zip file. You need to move the objects you want to delete outside the zip file before you can delete them:
$ShellApp = New-Object -COM 'Shell.Application'
$TheZipFile = $ShellApp.NameSpace("$ZipFileCreationDir\$ZipFileName")
$TheZipFile.Items() | ? { $_.Name -eq $FolderToCompress } | % {
$ShellApp.NameSpace($env:TEMP).MoveHere($_)
Remove-Item (Join-Path $env:TEMP $_.Name)
}
Note that Items() doesn't recurse into nested folders, it only enumerates the files and folders of the current namespace. If you need to process contents of nested folders you need to specify the nested path:
$NestedFolder = $ShellApp.NameSpace('C:\path\to\your.zip\nested\folder')
or recurse with something like this:
function RecurseIntoZip($fldr) {
$fldr.Items() | ? { $_.Name -eq $FolderToCompress } | % {
$_.Name
}
$fldr.Items() | ? { $_.Type -eq 'File folder' } | % {
RecurseIntoZip $_.GetFolder
}
}
RecurseIntoZip $TheZipFile