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Both KEPServerEX V4 and V5 are 32-bit applications that will run in 64-bit operating systems under the 32-bit environment. Some drivers, however, are required to use third-party low-level drivers that may be incompatible with 64-bit operating systems. A list of those drivers is as follows:

• Allen-Bradley Data Highway Plus
• Dataforth IsoLynx
• Fanuc Focas HSSB
  
• Hilscher Universal
• Modbus Plus*
• SattBus Serial**
• SIXNET UDR

*A 64-bit low-level driver is available.

**An ISA Card is required.

Note: KEPServerEX V4 uses older licensing technology that has latent dependencies on a "machnam1.exe" file. Any errors regarding this file can be ignored because they do not impact the server's operation or product licensing.