These are the hardware and software requirements for running XMaster:
| Minimum Requirement | Recommended | | Operating System | Microsoft Windows 3.1 | | | Processor | 25 MHz 80386SX | Pentium | | Main Memory | 4 MBytes | 8 MBytes | | Floppy Disc Drive | 1.4 MByte 3.5 inch for installation | | | Hard Disc Drive | 4 MBytes free for installation | | | Display | VGA 640 × 480 | SVGA 1024 × 768 | Notes: 1. XMaster will run on any 16 or 32 bit version of Microsoft Windows. It is not supported on 64 bit versions of Windows, eg Windows XP x64. 2. As the number of Hypotheses and Items of Evidence increases so the load on the processor increases. Therefore large Knowledge Bases may require the use of more powerful processors to obtain acceptable performance levels. 3. The minimum graphics display standard shown here is intended to enable XMaster User to be used on inexpensive lap top computers with very low resolutions. Where possible, and especially for development work, the recommendeddisplay resolution should be used if at all possible. 4. The Print Preview facility in XMaster generates its preview screens in main memory. Therefore, some of the Reports that may be generated by the larger Knowledge Bases may exceed available memory for Print Preview displays on systems with limited memory. This does not affect the final printed reports. 5. In order to make use of XMaster's Excel interworking facilities there must be a copy of Microsoft's Excel version 4.0 or later on the system and available to XMaster. | 
