powershell remote installing apps

I am trying to install a msi from a network share remotely.

$app = [WMICLASS]"\\$pcname\ROOT\CIMV2:Win32_Product"
$app.Install($AppPath)

I am getting an err 1619. From some s开发者_如何转开发ources say that WMI cannot install remotely with first coping it to the local computer and running it. Some sources use this command to exactly.

That way works great, but I want to install via share so when the developer updates this msi, it will update the installed instances automagiclly. If I install them locally, the update would not be detected (not sure of this).

So I have tried using methods along these lines:

Invoke-Command -ComputerName $pcname{ msiexec /quiet /i "\\appsvr\apps\theapp.msi" }  

Those commands seem to go off into the blackhole, those that command works when run locally.

Anyone have a method for doing this that works?

In your last scenario, you're credentials are likely getting lost. This is known as the "double-hop authentication" (or maybe it's "second-hop") problem. You're using creds from ServerA, to run something on ServerB, but it in the end has to connect to ServerC.

There's a fix if you have PowerShell v2 installed everywhere and are willing to accept the implications: http://blogs.msdn.com/powershell/archive/2008/06/05/credssp-for-second-hop-remoting-part-i-domain-account.aspx