TN - IT0225 aaCALWrapper.exe Consuming High Memory
Last updated: March 18th, 2026Description
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.
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