Questions
When I try to activate FoolCat (licensed or a trial), why am I told, “No virtual machine activations allowed.”?
Running FoolCat in a VM is a Pro feature.
If you see this error when activating a trial, you're running FoolCat in a VM, or a Hypervisor process must be active in Windows.
If you see this error when activating a purchased license, you have a regular license or a Pro license that needs VM activations allowed on your license.
A step-by-step guide for disabling any-and-all Hypervisor (Hyper-V) and Virtual Machine features on your PC is available here:
VMs & HypervisorsIf you have a regular license and need VM activations, upgrade your license in the License Manager, then reach out.
Already on a Pro license? Reach out.
FoolCat states error -1004
You're likely on an old version of FoolCat, update to the latest version.
"Invalid activation number"
You're likely trying to activate FoolCat using a legacy license key. Legacy license keys start with id or only have a few characters. Upgrade your license, or download a legacy version.
FoolCat states "Starting Services"
FoolCat's media engine isn't starting correctly. Reboot your computer, and if that doesn't help, reinstall FoolCat.

How can I export/import settings?
To export and import user settings for FoolCat on macOS, using the Terminal app, you can follow these steps:
Export Settings
Quit FoolCat
Open the Terminal app
Export the settings
Run the following command to export the settings to a
.plistfile:defaults export nl.syncfactory.FoolCat.Mac ~/Desktop/FoolCatSettings.plistThis will create a file named
OffShootSettings.pliston your desktop.
Import Settings
The user preferences contain encrypted user information that might cause an issue when doing this offline. A reactivation might be needed.
Open Terminal app
Import the preferences
Run the following command to import the preferences:
defaults import nl.syncfactory.FoolCat.Mac ~/Desktop/FoolCatSettings.plist
To export and import user settings for FoolCat on Windows, using PowerShell, you can follow these steps:
Export Settings
Quit FoolCat
Open PowerShell as Administrator
Right-click on the Start menu and select "Terminal (Admin)".
Export the settings Run the following commands to export the registry key to a
.regfile:
mkdir C:\\Tempreg export "HKEY_CURRENT_USER\\Software\\FoolCat" "C:\\Temp\\FoolCatSettings.reg"Prune the registry settings (BuildVersion, LicenseVersion)
(Get-Content "C:\\TEMP\\FoolCatSettings.reg") -notmatch '("BuildVersion"|"LicenseVersion")' | Set-Content "C:\\TEMP\\FoolCatSettings.reg"This will create a file named FoolCatSettings.reg in C:\Temp
Import Settings
The Registry values contain encrypted user information that might cause an issue when doing this offline. A reactivation might be needed.
Quit FoolCat
Open PowerShell as Administrator
Right-click on the Start menu and select "Terminal (Admin)"
Import the settings
Double-click the updated file or run the following command to import the registry settings:
reg import "C:\\Temp\\FoolCattSettings.reg"
Can I change the size of stills FoolCat creates?
Yes, you can change the size of the stills with the following Terminal command:
defaults write nl.syncfactory.Foolcat.Mac kFFMDefaultsPreferencesCatalogThumbSize -int 1024The value sets the maximum dimension of the still’s longest edge. For example, a value of 1024 means the still will fit within a 1024×128 box while preserving its original aspect ratio.
Yes, you can change the size of the stills with the following Terminal (PowerShell) command:
Set-ItemProperty -Path "HKCU:\Software\FoolCat" -Name "SettingsStillResolution" -Type DWord -Value 1024The value sets the maximum dimension of the still’s longest edge. For example, a value of 1024 means the still will fit within a 1024×128 box while preserving its original aspect ratio.
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