Launching an program is easy using the tikitag system,

Assuming you are using Windoze, For example I’ll use Excel,

Install tikitag software and reader

Create a shortcut to the app you want to open in a directory somewhere (I’ll use “c:\tikitag”)
In that directory, right click and select “New” then “Shortcut”.
Locate the Microsoft Excel program ("C:\Program Files\Microsoft Office\OFFICE11\EXCEL.EXE" )
Name the shortcut “excel”
Log into to tikitag and go to the dashboard
Click “make new application”
Click “web link” application
Click “choose this application”

Add name (excel)
Add description (Whatever)
Add url (file:///C:\tikitag\excel.lnk)
Select “use this app”
Put tag on reader when requested
Click “Choose this tag”
Click “OK make this tag”

When you next put the tag on the reader it should open Excel, or whatever program you choose, using the tikitag server

(Or alternatively you can just click the icon on the desktop )

Hope that helps somewhat…