Software Deployment

Hello

I am trying to repackage RecordNow 7.3 (from sonic)... I have read the guide (shown below) and to be honest i have no idea what a custom action is or how to apply them, write them....Any Help would be great!

Thanks

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here is the guide:

The application Sonic- RecordNow! Plus is basically a CD-Writing software. The vendor supplied 3 MSI's and MST's. If you want to create new package for this application, you have to go for wrapped msi only.

Write 3 Custom Actions to Install all the 3 MSI's and MST's and 3 Custom Actions to Uninstall. Have to take care about the sequence of the Custom Actions based on the MSI's. While creating the New MSI faced the following errors.
1. Add/Remove programs icon is the new MSI's icon and size of the application.
2. User doesn't get the 'SendTo' shortcut
3. Self-healing doesn't support by the vendor supplied MSI's
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