Programatically reading .msi build version

I'm creating a web site from which to download msi-files, and I want to "query" the .msi files for version information. (Note that I'm after the install kit version, not the version of files inside the install kit)

Specifically I want to be able to query the site from an application to check if there is a newer version of an install kit available for download, and I want a web page to display the version number of an msi-file available on the site.

I gave wrapping MsiGetFileVersion in msi.dll a quick try, but it doesn't give me anything. Might be that the below method is not the one I want.

Any ideas?

[DllImport("msi.dll", CharSet = CharSet.Unicode)]
extern static public uint MsiGetFileVersion(string path, StringBuilder version,
			ref uint versionSize, StringBuilder language, ref uint languageSize);

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alaranAuthor Commented:
Not to worry, I got it.

Here's some sample code it anyone's interested.

WindowsInstaller.Installer inst = (Installer) Activator.CreateInstance(Type.GetTypeFromProgID("WindowsInstaller.Installer"));
Database db = inst.OpenDatabase(Server.MapPath("PulseClientSetup.msi"), 0);
string query = "select * from Property where Property = 'ProductVersion'";
WindowsInstaller.View view = db.OpenView(query);
Record record = view.Fetch();
string version = record.get_StringData(2);
Response.Write("Version: " + version);

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