# DOS and Network Versions

filePro is compiled through version 4.8 for single user DOS and Networks. This version continues to use the DOS4GW extender software to make use of extended memory.

With filePro version 5.0, the compile was done on a Windows 32 bit systems and no longer required the DOS4GW extender. For newer Operating Systems it is important to be on supported versions of filePro 5.6 and higher