Should I block it?

44% of PCs block this file from running.
Possible reason:
Performance resource utilization



CouponXplorer Installer Plugin Stub by Mindspark Interactive Network (Signed)

Remove NP5zEISb.dll
Version:   1, 0, 0, 1
MD5:   78400ecae9fbb1e60187eff0ddcfae2e
SHA1:   8812fc770d692373d95ae0e04446d08dcce190d5


np5zeisb.dll is loaded as dynamic link library that runs in the context of the Mozilla Firefox web browser. The file is digitally signed by Mindspark Interactive Network which was issued by the VeriSign certificate authority (CA).


File name:np5zeisb.dll
Product name:CouponXplorer Installer Plugin Stub
Description:CouponXplorer Installer Plugin Stub for 32-bit Windows
Typical file path:C:\Program Files\couponxplorer_5zei\installr\1.bin\np5zeisb.dll
File version:1, 0, 0, 1
Product version:2, 3, 0, 0
Size:28.52 KB (29,200 bytes)
Build date:11/18/2011 10:34 PM
Issued to:Mindspark Interactive Network
Authority (CA):VeriSign
Effective date:Thursday, October 4, 2012
Expiration date:Sunday, July 5, 2015
Digital DNA
File packed:No
More details


Mozilla plugin

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 100.00%

Distribution by countryDistribution by country

United States installs about 50.00% of CouponXplorer Installer Plugin Stub.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Toshiba 66.67%
Hewlett-Packard 33.33%
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