问题
I'm trying to modify the contents of an MSI file using Powershell. To do so I create an instance of a WindowsInstaller.Installer then use $installer.OpenDatabase and $database.OpenView. Similar functionality works in VBScript and I've seen samples on-line that appear to work.
$installer = new-object -comobject "WindowsInstaller.Installer"
$database = $installer.OpenDatabase("C:\Temp\Setup.msi", 1)
For the above code, I get an error "Method invocation failed because [System.__ComObject] doesn't contain a method named 'OpenDatabase'."
$installer = new-object -comobject "WindowsInstaller.Installer"
$database = $installer.InvokeMethod("OpenDatabase","C:\Temp\Setup.msi", 1)
If I attempt to use $installer.InvokeMethod I get the same error "Method invocation failed because [System.__ComObject] doesn't contain a method named 'InvokeMethod'."
Any help would be much appreciated.
Thanks.
回答1:
See the this thread for some guidance. Basically the MSI COM object is implemented in a way that confuses PS. There is a link to a blog post discussing it in that thread.
回答2:
The originally accepted answer link, is no longer valid.
In the comments, JohnB has posted a link that has a great example of how to use the Windows Installer from Powershell.
There's also a CodePlex project that wraps a lot functionality and could be useful:
Windows Installer PowerShell Module
来源：https://stackoverflow.com/questions/450953/powershell-windows-installer-com-object