custom property and vcac agent

I would like to have some software run post deployment of the servers (lets say notepad ++). Now the idea is to have the user mark a checkbox if he needs a software to be installed

1. I installed the vcac agent on the windows template.
2. Went into "property definitions" and created a new property
3. Called it "Notepad++.Custom.Property" and selected it as a "checkbox"
4. Created a new build called "notepad ++" and set this properties:
5. Notepad++.Custom.Property = prompt user "Yes"
6. VirtualMachine.Admin.UseGuestAgent = True
7. VirtualMachine.Customize.WaitComplete = true
8. VirtualMachine.Software0.Name = Notepad ++
9. VirtualMachine.Software0.ScriptPath = \\172.16.10.24\Install\notepad.exe /S
10. 5) Created a new request and marked the checkbox to be installed but nothing is running.

Am I missing something?

If I need other software I can create other "builds" and naming each software with " VirtualMachine.Software0.Name" or do I need to change the software0 to Software1.name?

thanks