How to change the contents of a file included in an *.msi with VBScript

StackOverflow https://stackoverflow.com/questions/3556119

Question

Given an installer generated with a VS2010 Setup Project, I would like to swap out a .NET DLL with another one without changing the name.

I am already altering the msi file according to this question, swapping out the contents of an entry in the "Binary" table.

I have located the file in question using Orca. It resides in the only cabinet file. I have located this cabinet file in the "Media" table. I'm not sure how to change this cabinet file (API) and I suspect I'd have to change some information in the MSI database too (the "ProcessorArchitecture" record for the assembly in the "MsiAssemblyName" table).

Rationale: I'm making an installer for a Autodesk Revit 2011 plugin. These are registered using an assembly RevitAddinUtility.dll which must be bundled with the installer. This assembly comes in two flavors, one for 32-bit and one for 64-bit installations. I need to swap in the correct version when creating the installer, to avoid writing more than one installers.

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Solution 2

Here is a workaround I'm using in the meantime:

  • add both files, one named RevitAddinUtility.dll the other RevitAddinUtility64.dll
  • in the PostBuild-Event, ask the user if the setup project should be for 64bit.

  • if yes, then change the names of the files:

    If 6 = MsgBox("Build for 64bit?", 4, "Setup PostBuild event for DesignPerformanceViewer") Then
    Dim installer : Set installer = Wscript.CreateObject("WindowsInstaller.Installer")
    Dim database : Set database = installer.OpenDatabase(PATH_TO_MSI, msiOpenDatabaseModeTransact)
    Dim sqlQuery : sqlQuery = "SELECT `FileName`, `Component_` FROM File"
    Dim view : Set view = database.OpenView(sqlQuery)
    view.Execute
    Dim record : Set record = view.Fetch
    While Not record Is Nothing        
        If InStr(record.StringData(1), "RevitAddInUtility.dll") Then  
            record.StringData(1) = "REVITA~2.DLL|RevitAddInUtility32.dll"
            view.Modify msiViewModifyUpdate, record    
        ElseIf InStr(record.StringData(1), "RevitAddInUtility64.dll") Then    
            record.StringData(1) = "REVITA~1.DLL|RevitAddInUtility.dll"
            view.Modify msiViewModifyUpdate, record    
        End If    
        Set record = view.Fetch
    Wend
    database.Commit   
End If

OTHER TIPS

Checkout this article for easier ways to accomplish your goal:

RevitAddInUtility for 32 and 64 Bit Systems

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