TransMac, like many shareware applications, uses local system markers to track when the software was first installed. When you launch the program, it checks these markers against the current system date. If more than 15 days have passed, the software prompts for a serial key and locks most features. Common places where these markers are hidden include:
For users who just need to read files from a Mac-formatted (HFS+) hard drive, HFSExplorer is a free, open-source tool. It allows you to browse Mac volumes and copy files to your Windows machine without a trial period. transmac trial reset