DLP 25.1 Endpoint Agent Installation/Upgrade on Windows 11 Fails with Error Code: 15613

Products

Data Loss Prevention Core Package Data Loss Prevention Data Loss Prevention Endpoint Prevent

Issue/Introduction

DLP 25.1 Agent may fail to install or upgrade on Windows 11 machines. During installation, the MSI may return a generic error like the following:

MSI (s) (14:B4) [08:21:39:235]: Note: 1: 1708
MSI (s) (14:B4) [08:21:39:235]: Product: AgentInstall-x64 -- Installation operation failed.

MSI (s) (14:B4) [08:21:39:235]: Windows Installer installed the product. Product Name: AgentInstall-x64. Product Version: 25.1.00000.60234. Product Language: 1033. Manufacturer: Symantec Corp.. Installation success or error status: 1603.

The error code 1603 is a generic Windows Installer failure and does not indicate the exact cause. The real reason for the failure is usually logged separately and can be identified by a more specific error code, such as Error code: 15613 in this case, which points to missing prerequisites required by the Agent.

Environment

DLP Agent 25.1 on Windows 11 Machines.

Cause

Further analysis of the installation log shows that the DLP Agent setup fails during the prerequisite validation phase. The installer checks for the required Microsoft Visual C++ Redistributables, but the system does not have the necessary components installed.

Log snippet example:

Checking the prerequisite - Visual C++ redistributable for x64 installation ...
2025-12-01 08:21:39 | IsVCPlusPlusRedistributableInstalled | FINEST | enumerated a subkey: SOFTWARE\WOW6432Node\Microsoft\VisualStudio\12.0
2025-12-01 08:21:39 | IsVCPlusPlusRedistributableInstalled | FINEST | enumerated a subkey: SOFTWARE\WOW6432Node\Microsoft\VisualStudio\7.1
2025-12-01 08:21:39 | IsVCPlusPlusRedistributableInstalled | FINEST | RegEnumKeyEx() returned: 259
2025-12-01 08:21:39 | IsVCPlusPlusRedistributableInstalled | INFO | Key not found: SOFTWARE\WOW6432Node\Microsoft\VisualStudio\7.1\VC\Runtimes\x86. Error: 2
MSI (s) (14!B4) [08:21:39:140]: Product: AgentInstall-x64 -- Vontu Custom Action | ERROR: Installation can't proceed as Visual C++ redistributable x86 is not installed on this machine, error code: 15613

Vontu Custom Action | ERROR: Installation can't proceed as Visual C++ redistributable x86 is not installed on this machine, error code: 15613
2025-12-01 08:21:39 | IsVCPlusPlusRedistributableInstalled | WARNING | RegEnumKeyEx( "SOFTWARE\Microsoft\VisualStudio" ) failed: 2
MSI (s) (14!B4) [08:21:39:140]: Product: AgentInstall-x64 -- Vontu Custom Action | ERROR: Installation can't proceed as Visual C++ redistributable x64 is not installed on this machine, error code: 15613

Vontu Custom Action | ERROR: Installation can't proceed as Visual C++ redistributable x64 is not installed on this machine, error code: 15613
CustomAction Validatex64PreRequisite returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)
Action ended 8:21:39: Validatex64PreRequisite. Return value 3.
Action ended 8:21:39: INSTALL. Return value 3.

Resolution

According to the DLP System Requirements, DLP 25.1 agent installation on Windows 11 requires the following components:

If installing the agent for the first time:
- Microsoft Visual C++ 2022 Redistributable (required for ARM64)
- Microsoft Visual C++ 2015-2022 Redistributable (x64) (required for Intel and ARM64)
- Microsoft Visual C++ 2015-2022 Redistributable (x86) (required for Intel and ARM64)
If upgrading agents:
- Microsoft Visual C++ 2015-2022 Redistributable (x64) (required for Intel and ARM64)
- Microsoft Visual C++ 2015-2022 Redistributable (x86) (required for Intel and ARM64)

These must be installed before running the Agent installer.

For more information, refer to:
Supported Endpoints for DLP Agents

Once the missing Redistributables are installed, the DLP Agent setup should complete successfully.