private static string GetPreviousVersionInstallPath()
{
var retVal = String.Empty;
var products = ProductInstallation.GetProducts("{944871E7-9F8D-47B7-BE04-103E4C8F2254}", null, UserContexts.All);
var product = products?.FirstOrDefault();
var location = product?.LocalPackage;
if (location != null)
{
var package = new InstallPackage(location, DatabaseOpenMode.ReadOnly);
var componentId = package.Files.FirstOrDefault(kvp => kvp.Value.SourceName == "UO Bulk Order Deeds.exe").Key;
if (componentId != null)
{
var results = package.ExecuteQuery($"SELECT `ComponentId` FROM `Component` WHERE `Component` = 'C_{componentId}'");
var result = results?.Count > 0 ? results[0].ToString() : null;
if (result != null)
{
var componentInstallation = new ComponentInstallation(result);
var componentPath = componentInstallation.Path;
retVal = Path.GetDirectoryName(componentPath);
}
}
}
return(retVal);
}