For customers installing the evaluation copy of your software while an Internet connection is active, the trial tracking service allows you to monitor when the setup is initiated and completed. Most commercial installation packages allow you to create a custom dialog and post data to a URL. Design a custom dialog that asks the user for their Contact Name, EMail Address, and Source (how they heard of your product).
At the start of the installation, post these variables to http://secure.softwarekey.com/solo/products/demo_status.asp:
ProductID = (your product ID in Instant SOLO)
ContactName = user-supplied data
EMail = user-supplied data
Source = user-supplied data
Status = START
SOLO will attempt to find a trial download record with this e-mail address. If not found, it will create one. At the completion of installation, post these variables to the same URL:
ProductID = (your product ID in Instant SOLO)
EMail = user-supplied data
Status = COMPLETE
If successful, the script will return the string "Result = 1<p>"