Unfortunately, the support for PrintEXP doesn't exist anymore. The company doesn't list the software as being available anymore. They have other products released for public. However, in order to find the required information, I recommend contacting them using the contact option found on their website: http://www.hosonsoft.com/en/cn/Info.asp?gCateID=65625254.2
Contact them and the information will be sent to you in form of a user guide or manual. This appears to be the only way to get support for the application.