When launching node.bat on my test rig :

juin 05, 2018 1:20:14 PM snowblossom.db.rocksdb.JRocksDB
INFOS: Loadng RocksDB with path snowdb
Exception in thread "main" java.lang.ExceptionInInitializerError
        at org.rocksdb.RocksDB.loadLibrary(RocksDB.java:64)
        at org.rocksdb.RocksDB.(RocksDB.java:35)
        at snowblossom.db.rocksdb.JRocksDB.(JRocksDB.java:43)
        at snowblossom.SnowBlossomNode.loadDB(SnowBlossomNode.java:130)
        at snowblossom.SnowBlossomNode.(SnowBlossomNode.java:64)
        at snowblossom.SnowBlossomNode.main(SnowBlossomNode.java:35)
Caused by: java.lang.UnsupportedOperationException: Cannot determine JNI library name for ARCH='x86' OS='windows 10' name='rocksdb'
        at org.rocksdb.util.Environment.getJniLibraryName(Environment.java:72)
        at org.rocksdb.NativeLibraryLoader.(NativeLibraryLoader.java:19)
        ... 6 more
juin 05, 2018 1:20:14 PM snowblossom.db.rocksdb.JRocksDB close
INFOS: RocksDB flush started
java.lang.NoClassDefFoundError: Could not initialize class org.rocksdb.RocksDB
        at org.rocksdb.FlushOptions.(FlushOptions.java:9)
        at snowblossom.db.rocksdb.JRocksDB.close(JRocksDB.java:85)
        at snowblossom.db.DB.dbShutdownHandler(DB.java:108)
        at snowblossom.db.DB$DBShutdownThread.run(DB.java:137)

W10, java updated, rig rebooted