CTS SERIAL PORT UTILITIES v5.0: Featuring PortInfo and PortMaster - Detect/Fix modem & comm problems. Detect Com ports, IRQs used & IRQ problems. Supporting utilities solve many modem problems.~~Run PortMaster to ID modem installation & setup problems. PortMaster provides clear & detailed messages describing the problem & the most likely solution. All Com ports with working modems are clearly identified with Modem TYPE & SPEED. Modem Manufacturer and command set displayed in registered versions.~~PortInfo can be used in a Windows or OS/2 DOS box to provide a quick summary of port use. Additional Windows setup tests are included for registered users.