84,488,480 programs installed

Should I remove ActivClient CAC x64?

What percent of users and experts removed it?
4% remove it96% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #9,549
United States Rank #4,513
Reach 0.0388%
Lifespan of installation (until removal)
< 35.28 days
1040.83 days >
Average installed length: 546.88 days


6.2 100.00%

Typically installed together

ActivClient CAC x64

What is ActivClient CAC x64?

ActivClient middleware is smart card software that enables computer applications to talk to the computer chip on the HHS smart card ID badge. ActivClient is licensed by HHS for use by NIH smart card badge holders. The ActivClient license is per badge, not per computer. You may install ActivClient on any computer where you need to use your smart card for login, digital signatures or encrypted email.

About  (from ActivIdentity)

ActivClient is the market-leading security application that helps organizations manage the access requirements of all their different users against an ever-changing threat landscape. With ActivClient, organizations can go beyond simple passwords to deploy the best Identity Assurance solution for their environment – cho...  Read more


Upon installation and setup, it defines an auto-start registry entry which makes this program run on each Windows boot for all user logins. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. The main program executable is acevents.exe. The software installer includes 88 files and is usually about 20.36 MB (21,347,409 bytes).

Program detailsProgram details

URL: www.hidglobal.com/products/software/identity-assurance/activclient
Installation folder: C:\Program Files\ActivIdentity\ActivClient\
Uninstaller: MsiExec.exe /I{86E45973-5352-439F-A115-2E8EE4D40140}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 20.36 MB
Language: English (United States)

Program filesFiles installed by ActivClient CAC x64

Program executable:acevents.exe
Name:ActivClient Services
ActivIdentity Event Service
Path:C:\Program Files\ActivIdentity\ActivClient\acevents.exe
Additional files:
  • acakd.dll - Smart Card Middleware (Aspcard for ActivKey Display)
  • acDiagno.dll - ActivIdentity Diagnostic Tool API
  • acerrmes.dll - acerrmes DLL
  • acflex16.dll - aspcard_cflex16
  • acflex8.dll - aspcard_cflex8
  • acfscrfs.dll - Card Edge Chooser
  • acjavasc.dll - Aspcard for javacards
  • acjscpiv.dll - Aspcard for javacards PIV
  • acjscpivext.dll - Aspcard for javacards PIV + Extensions
  • acjscrfs.dll
  • acjvscv2.dll - Aspcard for javacards V2
  • aicommapi.exe - ActivIdentity - 32 bits COM server
  • acautoup.exe - ActivClient Services (ActivClient Auto Update Service)
  • acevtbrdcst.dll - ActivIdentity Event Broadcaster DLL
  • acevtsub.dll - ActivIdentity Event Subscriber DLL
  • ackpbsc.dll - ackpbsc
  • accrypto.dll - Cryptographic Tools (accrypto Dynamic Link Library)
  • aclibeay.dll - The OpenSSL Toolkit (OpenSSL Shared Library)
  • aclog.dll - Library - Logging (ActivIdentity Log API)
  • acpicom.dll - APDU Network Pipe
  • acpimeta.dll
  • acpipint.dll
  • aiwinext.dll - Windows - Generic (Windows generic functions)
  • acbsij.dll - ActivClient Mini (ActivIdentity XSI/BSI v1.8 Wrapper)
  • acbsi21.dll - Smart Card APIs (ActivIdentity Basic Services Interface Provider)
  • acbsiprov.dll - ActivIdentity BSI v1.8
  • acCOMacomx.exe - ActivClient acomx server - 64 bits COM server
  • acCOMbsi21.exe - ActivIdentity Basic Services Interface Provider - 64 bits COM server
  • acCOMcsp.exe - ActivClient Cryptographic Service Provider - 64 bits COM server
  • acCOMpiv.exe - acpivapi Dynamic Link Library - 64 bits COM server
  • acCOMpkcs.exe - ActivIdentity PKCS#11 2.11 API - 64 bits COM server
  • acCOMpkcscallback.dll - ActivIdentity PKCS#11 2.11 API - 32 bits COM callback
  • accsp.dll - ActivClient Cryptographic Service Provider
  • accuvoplite.dll - VOP Card Update
  • acomx.dll - acomx
  • acpivapi.dll - acpivapi Dynamic Link Library
  • acpkcs201.dll - ActivIdentity PKCS#11 2.01 API
  • acpkcs201-en6.dll
  • acpkcs201-ns.dll
  • acpkcs211.dll - ActivIdentity PKCS#11 2.11 API
  • aijnipiv.dll - PIV API Wrapper Dynamic Link Library
  • jnibsi21.dll - JNI wrapper for BSI 2.1 API
  • ac.activclient.syslog.dll - ActivClient (ActivIdentity Authentication Client Auditing Module)
  • ac.cardsync.dll - Smart Card auto-update
  • acacia.dll - acacia
  • accrdsub.exe - ActivIdentity card event handler
  • AcDiagToolPlugin.dll - SnapIn for ActivClient Diagnostic
  • acexchex.dll - ActivIdentity Outlook extension DLL
  • acakdrc.dll
  • acc16krc.dll
  • acc8krc.dll
  • accobapilrc.dll - acCobAPI resources DLL
  • accobapirc.dll
  • acerrmrc.dll
  • acjavarc.dll
  • acjpivextrc.dll
  • acjpivrc.dll
  • acjsc2rc.dll
  • asphatrc.dll - asphat32
  • acautrc.dll

Program behaviorsBehaviors exhibited

  • acautoup.exe runs as a service named 'ActivClient Auto-Update Service' (acautoupdate) "Enables the download and installation of ActivClient updates. If this service is stopped or disabled, Software Auto-Update will not be available.".
2 Startup Files (All Users Run)
  • acevents.exe is loaded in the all users (HKLM) registry as a startup file name 'acevents' which loads as "C:\Program Files\ActivIdentity\ActivClient\acevents.exe".
  • accrdsub.exe is loaded in the all users (HKLM) registry as a startup file name 'accrdsub' which loads as "C:\Program Files\ActivIdentity\ActivClient\accrdsub.exe".

How do I remove ActivClient CAC x64?

You can uninstall ActivClient CAC x64 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 ActivClient CAC x64, 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 ActivClient CAC x64.

Win 7 (SP1) 80%
Win XP 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 4%
Keep it 96%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 81.57%
Windows 10 12.81%
Windows Vista 5.36%
Windows XP 0.26%
Which OS releases does it run on?
Windows 7 Home Premium 60.53%
Windows 7 Professional 10.39%
Windows 7 Ultimate 6.71%
Windows 10 Home 6.18%
Windows Vista Home Premiu... 5.00%
Windows 7 Enterprise 3.68%

Distribution by countryGeography

95.23% of installs come from the United States
Which countries install it?
  United States 95.23%
  Germany 1.46%
  Korea 0.62%
  Japan 0.54%
  United Kingdom 0.23%
  GU 0.23%
  Kuwait 0.23%
  PR 0.23%
  AF 0.15%
  Belgium 0.15%
  Thailand 0.15%
  United Arab Emirates 0.08%
  AL 0.08%
  BH 0.08%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 34.81%
Dell 25.78%
Toshiba 14.00%
ASUS 10.13%
Acer 7.37%
Alienware 2.76%
Lenovo 1.66%
Samsung 1.10%
Gateway 0.55%
Common models
HP Pavilion dv6 Notebook ... 8.94%
HP Pavilion dv7 Notebook ... 6.78%
HP Pavilion g7 Notebook P... 2.71%
ASUSTeK G74Sx 2.17%
TOSHIBA Satellite P755 2.17%
Dell Inspiron 560 1.90%


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