Versions

2009.8.0.15	0.70%
2008.6.00.18	0.35%
2008.1.00.98	0.35%
21.3.0.12	3.51%
21.1.1.1	1.05%
21.1.0.18	0.35%
21.0.2.1	0.35%
21.0.1.3	0.35%
21.0.0.100	0.35%
21.0.0.58	0.35%
20.5.0.28	0.70%
20.4.0.40	18.60%
20.3.1.22	7.72%
20.3.0.37	0.35%
20.3.0.36	9.82%
20.2.1.22	7.72%
20.2.0.19	13.33%
20.1.0.24	1.05%
19.9.1.14	7.72%
19.9.0.9	11.23%
19.5.0.145	0.35%
19.1.0.28	1.40%
19.0.0.128	0.35%
18.7.2.3	8.77%
18.7.1.3	1.05%
18.6.0.29	0.35%
17.9.0.12	1.75%

There are 27 versions of npctray.dll in the wild, the latest version being 2009.8.0.15. The average file size is about 442.15 KB. The file is a digitally signed and issued to Symantec Corporation by VeriSign.

Norton Internet Security, by Symantec Corporation, is a PC program that provides malware prevention and removal during subscription period and uses signatures and heuristics to identify viruses, trojans and other malware. Norton Internet Security features include a email spam filtering, personal firewall, and phishing protection.