The "ZZA Snowplow Addon" is a
self-contained installer. Just double-click it to run, and choose to install
it into "RailWorks" when prompted.
The Bonus addon: "KAHD Snowplow Scenario
Pack", file is packaged in "zip"
format. After downloading the file to your computer, Un-zip it. Launch RailWorks3/Train-Simulator2012 and from the launcher window click on the "Package Manager" tab,
click the "Refresh" button. After the refresh completes, click on the "Install" button, then navigate to the un-zipped file and
select the "KAHD_Snowplow_Scenario_pack_v1.rwp" file to install.
After installing, you might also click on the "Tools & Docs" tab and use the
"Clear Cache" button there to help ensure that the newly installed scenario
will work properly with RailWorks.
Start RailWorks, then from the "Drive by Route" list select the "King's
Arm Highway Deluxe" route, and from the Scenario list on the Standard Scenarios tab,
you should find the "Snowplow Run" scenario listed there that you
can select and play. There will also be a "Freeroam Shipyard Snowplow"
scenario added on the Freeroam list.
Scenario Briefing: There's a bad
snow-storm in King's Arm this evening and the main tracks need to be plowed.
Approximate level of difficulty is Medium.
Approximate time to complete is around 55 minutes.