The Siemens NX 8.5 Documentation (frequently referred to as the Help Library) is an independent installation package separate from the main software. Because NX is deployed globally, Siemens provides these resources in a "Multilanguage" format. Supported Languages
Mastering Siemens NX 8.5: The Definitive Guide to 32-bit & 64-bit Deployments Siemens NX 8.5 32 bits 64 bits Docs -Multilanguage-