Deep Security Agent (DSA) for Windows and Windows shared DLLs

Product / Version includes:

Deep Security 11.0 , Deep Security 10.0 , Deep Security 12.0

Last updated: 2025/05/08

Solution ID: KA-0011094

Category: Upgrade , Uninstall

Summary

The earlier version of Deep Security Agent (DSA) for Windows requires shared DLLs (e.g., Microsoft Visual C++ runtime libraries) under the Windows System32 folder. Starting from the versions mentioned in the details section, DSA will install required DLLs under its installation directory.

In the following scenarios, DSA will unregister usage to shared DLLs (decrease the reference count). Windows will then determine whether to remove shared DLLs that are unused (the reference count is 0):

- Uninstalling the earlier DSA version
- Upgrading from the earlier DSA version

Before uninstallation or upgrade, please make sure the reference count of the shared DLLs used by DSA is greater than or equal to 2, otherwise those applications that depend on the shared DLLs (but don't do registration to system) may not be able to run because of missing dependencies.

And if you see any the reference count is 1 before uninstallation or upgrade, you need to install the Windows packages so that the corresponding shared DLLs won't be removed after DSA removal or upgrade:

- Microsoft Visual C++ Redistributable 2015 x64 or x86
- Microsoft Visual C++ Redistributable 2012 x64 or x86

The following is the registry key tree of shared DLLs (Windows management):

```
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls
```

The shared DLLs used by the earlier version of DSA:

- concrt140.dll (included in Microsoft Visual C++ Redistributable 2015)
- msvcp140.dll (included in Microsoft Visual C++ Redistributable 2015)
- vccorlib140.dll (included in Microsoft Visual C++ Redistributable 2015)
- vcruntime140.dll (included in Microsoft Visual C++ Redistributable 2015)
- msvcp110.dll (included in Microsoft Visual C++ Redistributable 2012)
- msvcr110.dll (included in Microsoft Visual C++ Redistributable 2012)
- vccorlib110.dll (included in Microsoft Visual C++ Redistributable 2012)

Starting from the following versions, DSA will install required DLLs under its installation directory instead of the Windows System32 folder:

- Deep Security Agent 12 LTS GA and newer
- Deep Security Agent 11 LTS Update 6 and newer
- Deep Security Agent 10 LTS Update 17 and newer

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Deep Security Agent (DSA) for Windows and Windows shared DLLs

Deep Security Agent (DSA) for Windows and Windows shared DLLs

Product / Version includes:

Summary