Establish where the code comes from
Start with the original publisher or an identifiable repository, not an anonymous download mirror. Read the license to determine whether commercial use, modification and redistribution are permitted. A file described as free may be a trial, a limited edition or an unauthorized copy. Do not treat download availability as proof of permission or safety.
Look for an operating history
Review the release history, installation instructions and issue reporting route. Identify who maintains the software and what happens when a dependency changes. A working demo can show an interface, but it does not establish that the code is supported or that you can repair problems affecting real customer orders.
Calculate the costs beyond the license
Hosting, domain registration, backups, email delivery and technical maintenance may remain necessary even when the software price is zero. Separate these ongoing costs from supplier balances used to fulfil orders. Estimate the time needed for administration and customer support before deciding that the free script is cheaper than a hosted alternative.
Test without customer money
Install a candidate in an isolated test environment and use sample data. Exercise registration, balance changes, service updates and order-status handling before attaching a production provider. Never paste real customer credentials into an unreviewed demo. Keep a recoverable backup and a documented rollback approach before inviting customers or accepting deposits.
Does a free script include free SMM services?
No. Software access and supplier fulfilment are different costs. Confirm each independently.