84,488,480 programs installed

Should I remove NMAS Challenge Response Method?

What percent of users and experts removed it?
5% remove it95% keep it
Overall Sentiment
What do people think about it?
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How common is it?
Global Rank #11,809
United States Rank #9,627
Reach 0.0279%


VersionDistribution 57.92% 24.95% 9.84% 2.91%
2.7.5 0.18% 2.19%
2.07.0001 2.00%

Typically installed together

NMAS Challenge Response Method

What is NMAS Challenge Response Method?  (from Novell)

The Challenge Response method is typically used when users forget their password, prompting the user with a series of pre-defined questions. If the correct response is given to each of the questions, the user is allowed to reset the password. The questions can be admin-defined or user-defined, and can be required or ra...  Read more


NMAS Challenge Response Method is a software program developed by Novell. The most common release is, with over 98% of all installations currently using this version. The setup package generally installs about 1 files and is usually about 5.16 MB (5,411,840 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows XP. While about 55% of users of NMAS Challenge Response Method come from the United States, it is also popular in Germany and Canada.

Program detailsProgram details

URL: www.novell.com
Help link: www.med.umich.edu/i/mcit/cust_srvc_ctr/index.htm
Installation folder: C:\Program Files\novell\nmas\en
Uninstaller: MsiExec.exe /X{B9A5A789-D491-49FB-958C-BFEC2C11BB1D}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 5.16 MB

Program filesFiles installed by NMAS Challenge Response Method

  • crres.dll - Novell Challenge Response Method (Novell Challenge Response Resource Library)

How do I remove NMAS Challenge Response Method?

You can uninstall NMAS Challenge Response Method from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program NMAS Challenge Response Method, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove NMAS Challenge Response Method.

Win 7 (SP1) 67%
Win Server 2003 0%
Uninstall it 5%
Keep it 95%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 69.40%
Windows XP 16.39%
Windows 10 12.57%
Windows Vista 1.46%
Windows Server 2003 0.18%
Which OS releases does it run on?
Windows 7 Professional 44.83%
Microsoft Windows XP 16.24%
Windows 7 Enterprise 15.31%
Windows 7 Home Premium 4.80%
Windows 7 Ultimate 4.06%
Windows 10 Pro 3.32%

Distribution by countryGeography

55.29% of installs come from the United States
Which countries install it?
  United States 55.29%
  Germany 6.29%
  Canada 4.29%
  South Africa 2.86%
  France 2.00%
  Sweden 2.00%
  United Kingdom 1.86%
  Italy 1.71%
  Austria 1.57%
  Netherlands 1.57%
  Czech Republic 1.57%
  Brazil 1.43%
  Spain 1.29%
  Israel 1.14%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 41.57%
Hewlett-Packard 35.67%
Acer 7.02%
Lenovo 4.78%
Intel 4.49%
ASUS 2.25%
Toshiba 1.12%
Samsung 1.12%
Common models
HP Compaq 8200 Elite SFF ... 4.37%
Dell OptiPlex 780 2.78%
CTL EC14 2.78%
Dell OptiPlex 7010 2.78%
Dell OptiPlex 990 2.38%
HP EliteBook 2560p 1.98%


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