How to remove an PenClass error
PenClass.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the OS, hardware etc.
The free file information forum can help you determine if PenClass.sys belonging to the Windows system or an application you can trust.
Run a free scan to check for PenClass drivers in need of updating
PenClass.sys file information
The process known as Pen Class Driver belongs to software Wacom Pen Class Driver or Pen Class by Wacom Technology (www.wacom.com).
Description: PenClass.sys is located in the folder C:\Windows\System32\drivers.
The file size on Windows 7/XP is 8,138 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs.
The program has no visible window. There is no detailed description of this service. PenClass.sys is not a Windows core file.
PenClass.sys seems to be a compressed file.
Therefore the technical security rating is 36% dangerous, however also read the users reviews.
If there are any problems with PenClass.sys, you can also uninstall Pen Tablet or Tablet software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 7/Vista).
Recommended: Identify PenClass.sys related errors
Important: Some malware camouflages itself as PenClass.sys, particularly when located in the c:\windows or c:\windows\system32 folder. Therefore, you should check the PenClass.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.
Score
User Comments
Alex
PenClass scanner
Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan. MalwareBytes detects and removes sleeping spyware, adware, trojans, keyloggers, malware and tracking threats from your hard disk. Ideal supplement to Security Task Manager. SpeedUpMyPC scans, cleans, repairs and optimizes your computer. |
Other processes
ventrilo_srv.exe sscviihost.exe unins000.exe PenClass.sys dcdisk.sys wsctf.exe sensorsrv.exe prxtbdvdv.dll macromedia licensing.exe winb2s32.dll 3xhybrid.sys [all]
Macarlo (further information)