How do I overwrite existing items with Folder.CopyHere in PowerShell?

Question

I run the following to unzip and want to overwrite the current files if they exist but the Microsoft solution doesn't seem to work. I haven't found anything that says it works so is there a work around to select the 'yes to all' option?

$zipPackage = (new-object -com shell.application).NameSpace($zipfilename)
$destinationFolder = (new-object -com shell.application).NameSpace($destination)
$destinationFolder.CopyHere($zipPackage.Items(),16)

score 54 · Answer 1 · edited Aug 28 '12 at 03:26

54

If you want it to overwrite AND be silent change 0x10 to 0x14 (docs).

$destinationFolder.CopyHere($zipPackage.Items(), 0x14)

edited Aug 28 '12 at 03:26

Anthony Mastrean

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answered Apr 19 '11 at 03:47

Peter

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The flags work when extracting a zip file to a folder, which is what the OP is doing in his example, but seem to be ignored when creating a zip file :( – deadlydog Feb 25 '15 at 07:30
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Just a head up, the special Fonts folder does not honor overloads passed in the CopyHere method. – FoxDeploy Jun 11 '15 at 16:48
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@FoxDeploy, thanks for the heads-up about the Fonts folder. – Roy Tinker Sep 22 '16 at 20:23
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I came here for the fonts folder :| – Northstrider Mar 18 '17 at 09:01

score 1 · Answer 2 · answered Mar 01 '10 at 22:32

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My pragmatic remedy for this issue would be to use something like 7-Zip. Which has a nice commandline interface easily used from within PowerShell.

answered Mar 01 '10 at 22:32

Bas Bossink

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Sorry, I can't change the zip app. So is there no way around the microsoft blunder? – Bruce227 Mar 02 '10 at 05:46

How do I overwrite existing items with Folder.CopyHere in PowerShell?

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