The license agreement (EULA www.turnssoft.com/faq2.html#eula) for Mini Mouse Macro Pro (and classic) permits loading Mini Mouse Macro Pro on a single PC. Each PC requires a licensed copy of Mini Mouse Macro Pro.
Is it bound to PC-hardware? One license allows to use the software once at a time, but on different machines?
The software isn't 'bound' to PC hardware or anything like that. Mini Mouse Macro is a single executable, it's designed to be portable. With that in mind you can move it from computer to computer. But...if you plan to run several copies across multiple PC's simultaneously then under the EULA a purchased copy for each PC is required. Discount pricing is available for business multiple seat requirements of 10+.
Here is an exert from the EULA:
You are permitted to load the Mini Mouse Macro Pro software (for example a single PC, Laptop, or Server) under your control. You are responsible for ensuring your device meets the minimum requirements of the Mini Mouse Macro Pro software.
You are not permitted to:
Edit, alter, modify, adapt, translate or otherwise change the whole or any part of the Software nor permit the whole or any part of the Software to be combined with or become incorporated in any other software, nor decompile, disassemble or reverse engineer the Software or attempt to do any such things;
Reproduce, copy, distribute, resell or otherwise use the Software for any commercial purpose;
Allow any third party to use the Software on behalf of or for the benefit of any third party;
Use the Software in any way which breaches any applicable local, national or international law;
Use the Software for any purpose that Turnssoft - Software Development considers is a breach of this EULA agreement.