CODEWITHSUNDEEP
powershellzip7zip
ahhfzrx
ahhfzrx

Reputation: 75

how can I find the usable zipping tool on win7 and win10 and zip files using Powershell

I want my script be running on both Win 7 and Win 10 system to generate either zip or 7z files.

On Win10, the Add-Type way can be used to generate zip file. 

Add-Type -assembly "system.io.compression.filesystem"
[io.compression.zipfile]::CreateFromDirectory($Source, $destination)

However, on Win7 it doesn't work. So I just change the script as:

cmd /c "C:\Program Files\7-Zip\7z.exe" a "D:\$folderName.7z" $source

It works however, it's not guaranteed that 7z.exe is installed under C:\Program Files\7-Zip for every user.

So I was wondering how can I write a powershell script usable on both Win7 and Win10 without specifying zip.exe path.

Upvotes: 0

Views: 65

Answers (2)

Bruce Payette
Bruce Payette

Reputation: 2639

If upgrading to PowerShell 5 is an option, then it's easy: just use the Compress-Archive cmdlet.

Upvotes: 2

Bill_Stewart
Bill_Stewart

Reputation: 24585

Here's one way to check if 7-Zip is installed:

$sevenZip = Join-Path ([Environment]::GetFolderPath([Environment+SpecialFolder]::ProgramFiles)) "7-Zip\7z.exe"
if ( -not (Test-Path -LiteralPath $sevenZip) ) {
  Write-Error "7-Zip is required." -Category ObjectNotFound
  return  # or exit, if you are in a script
}
# Call it this way:
# & $sevenZip arg1 [arg2 [...]]

Upvotes: 1

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