Environment
NSL 8.0.1
Adobe Acrobat Pro 11
Windows 7 64 bit
Adobe Acrobat Pro 11
Windows 7 64 bit
Situation
Uninstalling or updating SecureLogin 8.0.1 results in a pop-up message box
Acrotray.exe or a blank message shows in popup:

Uninstall continues and completes successfully after user clicks OK in the pop up.
Problem occurs with both silent command line uninstall and when uninstalling through control panel.
Upgrading from SecureLogin 8.0.1 results in same pop-up during uninstall of 8.0.1.
Problem occurs with Adobe Acrobat Pro 11 installed, but does not occur with just Adobe Acrobat Reader.
Popup is NOT presented when uninstalling NSL 8.0.2 or later.
Acrotray.exe or a blank message shows in popup:


Uninstall continues and completes successfully after user clicks OK in the pop up.
Problem occurs with both silent command line uninstall and when uninstalling through control panel.
Upgrading from SecureLogin 8.0.1 results in same pop-up during uninstall of 8.0.1.
Problem occurs with Adobe Acrobat Pro 11 installed, but does not occur with just Adobe Acrobat Reader.
Popup is NOT presented when uninstalling NSL 8.0.2 or later.
Resolution
Prior to uninstalling NLS 8.0.1 delete the following registry key(s):
HKLM\System\CurrentControlSet\Control\Citrix\wfshell\TWI
LogoffCheckSysModules
And if present:
HKCU\System\CurrentControlSet\Control\Citrix\wfshell\TWI
LogoffCheckSysModules
Replace after uninstalling if Citrix is installed on the workstation.
HKLM\System\CurrentControlSet\Control\Citrix\wfshell\TWI
LogoffCheckSysModules
And if present:
HKCU\System\CurrentControlSet\Control\Citrix\wfshell\TWI
LogoffCheckSysModules
Replace after uninstalling if Citrix is installed on the workstation.
Cause
The SecureLogin 8.0.1 uninstall includes a debug messagebox that shows the content of LogoffCheckSysModule.
The Acrobat Pro installer adds a value of acrotray.exe to LogoffCheckSysModule. This occurs even without Ctitrix on the workstation.
A blank message box will be presented if LogoffCheckSysModule is present but empty.
The Acrobat Pro installer adds a value of acrotray.exe to LogoffCheckSysModule. This occurs even without Ctitrix on the workstation.
A blank message box will be presented if LogoffCheckSysModule is present but empty.
Additional Information
This debug messagebox was removed from the uninstall beginning with SecureLogin 8.0.2.