Some content on this site is available only to logged-in subscribers. Contact Us for information on becoming a subscriber.

InSource.Solutions | InSource Training | InSource Client Portal
InSource Solutions Logo
Log In Sign Up
InSource.Solutions InSource Training InSource Client Portal Log In Sign Up
  • Home
  • AVEVA InTouch
  • AVEVA InTouch Tech Notes

TN - IT0225 aaCALWrapper.exe Consuming High Memory

Last updated: March 18th, 2026

Description

2023 R2 P01

  • Author: Josh Andrade
  • Published: March 18th, 2026

Details:

Description

aaCALWrapper.exe consuming high memory in terminal sessions. (2023 R2 P01)

Problem Description:

After a reboot, the memory drops to about 4MBs, but after a week it grows to 400+MB.

Solution:

Disable setting in group policy that was preventing the system from unloading the user registry after logoff.

After a reboot, aaCALWrapper.exe memory drops to around 2MB and remains.

high memory aacalwrapper
Give feedback about this article

Recommended articles

[ISS Support Case] IDE License Acquisition Failure

Client reached out as when user was attempting to launch the IDE they were receiving a license acquisition failure message.

Read More

[ISS Support Case] Cannot Connect to license activation server

Client was experiencing an issue activating the license. Client is not able to remove license from license manager. Having this issue on multiple PCs running both License Manager 4.1 and 3.7.002.

Read More

[ISS Support Case] InTouch License Acquisition Failure

Client reached out as when user was attempting to start InTouch they were receiving a license acquisition failure message.

Read More
Support Icon

CONTACT SUPPORT

How to reach us

10800 Midlothian Turnpike Tpke, Suite 209, Richmond, VA 23235

1.877.INSOURCE

Technical Support - 1.888.691.3858

Contact Us

  • InSource Solutions
  • InSource Training
  • InSource Client Portal
  • Log In
InSource Solutions Logo

© 2026 InSource Solutions. All Rights Reserved.

Knowledge Base Software powered by Helpjuice

Expand