The ZEHRaster Plus is a very old application. Based on the search queries, I have found that it was designed to run on Windows NT or higher, but no higher than Windows Vista. The problem you have is directly related to its compatibility. The 64bit system architecture is different. Beside that, the software requires an update, and HP website doesn't provide any data about it.
Right-click and go to Properties > Compatibility. Choose the oldest version of Windows listed there and then run the software.