diff --git a/schemas/JSON/manifests/v1.4.0/manifest.installer.1.4.0.json b/schemas/JSON/manifests/v1.4.0/manifest.installer.1.4.0.json
index 1f4475e977..fbc6cbf9f5 100644
--- a/schemas/JSON/manifests/v1.4.0/manifest.installer.1.4.0.json
+++ b/schemas/JSON/manifests/v1.4.0/manifest.installer.1.4.0.json
@@ -222,6 +222,7 @@
             "type": "string",
             "enum": [
               "packageInUse",
+              "packageInUseByApplication",
               "installInProgress",
               "fileInUse",
               "missingDependency",
diff --git a/schemas/JSON/manifests/v1.4.0/manifest.singleton.1.4.0.json b/schemas/JSON/manifests/v1.4.0/manifest.singleton.1.4.0.json
index 51bbbbf630..d562a2de84 100644
--- a/schemas/JSON/manifests/v1.4.0/manifest.singleton.1.4.0.json
+++ b/schemas/JSON/manifests/v1.4.0/manifest.singleton.1.4.0.json
@@ -264,6 +264,7 @@
             "type": "string",
             "enum": [
               "packageInUse",
+              "packageInUseByApplication",
               "installInProgress",
               "fileInUse",
               "missingDependency",
diff --git a/src/AppInstallerCLICore/Resources.h b/src/AppInstallerCLICore/Resources.h
index be31921a12..5c8843712b 100644
--- a/src/AppInstallerCLICore/Resources.h
+++ b/src/AppInstallerCLICore/Resources.h
@@ -152,6 +152,7 @@ namespace AppInstaller::CLI::Resource
         WINGET_DEFINE_RESOURCE_STRINGID(InstallFlowReturnCodeMissingDependency);
         WINGET_DEFINE_RESOURCE_STRINGID(InstallFlowReturnCodeNoNetwork);
         WINGET_DEFINE_RESOURCE_STRINGID(InstallFlowReturnCodePackageInUse);
+        WINGET_DEFINE_RESOURCE_STRINGID(InstallFlowReturnCodePackageInUseByApplication);
         WINGET_DEFINE_RESOURCE_STRINGID(InstallFlowReturnCodeRebootInitiated);
         WINGET_DEFINE_RESOURCE_STRINGID(InstallFlowReturnCodeRebootRequiredForInstall);
         WINGET_DEFINE_RESOURCE_STRINGID(InstallFlowReturnCodeRebootRequiredToFinish);
diff --git a/src/AppInstallerCLICore/Workflows/InstallFlow.cpp b/src/AppInstallerCLICore/Workflows/InstallFlow.cpp
index d0af3ef715..0422eb5e6c 100644
--- a/src/AppInstallerCLICore/Workflows/InstallFlow.cpp
+++ b/src/AppInstallerCLICore/Workflows/InstallFlow.cpp
@@ -116,6 +116,8 @@ namespace AppInstaller::CLI::Workflow
                 {
                 case ExpectedReturnCodeEnum::PackageInUse:
                     return ExpectedReturnCode(returnCode, APPINSTALLER_CLI_ERROR_INSTALL_PACKAGE_IN_USE, Resource::String::InstallFlowReturnCodePackageInUse);
+                case ExpectedReturnCodeEnum::PackageInUseByApplication:
+                    return ExpectedReturnCode(returnCode, APPINSTALLER_CLI_ERROR_INSTALL_PACKAGE_IN_USE_BY_APPLICATION, Resource::String::InstallFlowReturnCodePackageInUseByApplication);
                 case ExpectedReturnCodeEnum::InstallInProgress:
                     return ExpectedReturnCode(returnCode, APPINSTALLER_CLI_ERROR_INSTALL_INSTALL_IN_PROGRESS, Resource::String::InstallFlowReturnCodeInstallInProgress);
                 case ExpectedReturnCodeEnum::FileInUse:
diff --git a/src/AppInstallerCLIPackage/Shared/Strings/en-us/winget.resw b/src/AppInstallerCLIPackage/Shared/Strings/en-us/winget.resw
index ac583d45ae..18c07fd368 100644
--- a/src/AppInstallerCLIPackage/Shared/Strings/en-us/winget.resw
+++ b/src/AppInstallerCLIPackage/Shared/Strings/en-us/winget.resw
@@ -1176,6 +1176,9 @@ Do you agree to the terms?</value>
   <data name="InstallFlowReturnCodePackageInUse" xml:space="preserve">
     <value>Application is currently running. Exit the application then try again.</value>
   </data>
+  <data name="InstallFlowReturnCodePackageInUseByApplication" xml:space="preserve">
+    <value>Files modified by the installer are currently in use by a different application. Exit the applications then try again.</value>
+  </data>
   <data name="InstallFlowReturnCodeInstallInProgress" xml:space="preserve">
     <value>Another installation is already in progress. Try again later.</value>
   </data>
diff --git a/src/AppInstallerCommonCore/Manifest/ManifestCommon.cpp b/src/AppInstallerCommonCore/Manifest/ManifestCommon.cpp
index c3cc446767..cf4869aa75 100644
--- a/src/AppInstallerCommonCore/Manifest/ManifestCommon.cpp
+++ b/src/AppInstallerCommonCore/Manifest/ManifestCommon.cpp
@@ -311,6 +311,10 @@ namespace AppInstaller::Manifest
         {
             result = ExpectedReturnCodeEnum::PackageInUse;
         }
+        if (inStrLower == "packageinusebyapplication")
+        {
+            result = ExpectedReturnCodeEnum::PackageInUseByApplication;
+        }
         else if (inStrLower == "installinprogress")
         {
             result = ExpectedReturnCodeEnum::InstallInProgress;
diff --git a/src/AppInstallerCommonCore/Public/AppInstallerErrors.h b/src/AppInstallerCommonCore/Public/AppInstallerErrors.h
index 1a5014f00d..15fb835357 100644
--- a/src/AppInstallerCommonCore/Public/AppInstallerErrors.h
+++ b/src/AppInstallerCommonCore/Public/AppInstallerErrors.h
@@ -126,6 +126,7 @@
 #define APPINSTALLER_CLI_ERROR_INSTALL_DOWNGRADE                ((HRESULT)0x8A15010E)
 #define APPINSTALLER_CLI_ERROR_INSTALL_BLOCKED_BY_POLICY        ((HRESULT)0x8A15010F)
 #define APPINSTALLER_CLI_ERROR_INSTALL_DEPENDENCIES             ((HRESULT)0x8A150110)
+#define APPINSTALLER_CLI_ERROR_INSTALL_PACKAGE_IN_USE_BY_APPLICATION ((HRESULT)0x8A150111)
 
 
 namespace AppInstaller
diff --git a/src/AppInstallerCommonCore/Public/winget/ManifestCommon.h b/src/AppInstallerCommonCore/Public/winget/ManifestCommon.h
index 6688ffa5b4..00b0d2adcb 100644
--- a/src/AppInstallerCommonCore/Public/winget/ManifestCommon.h
+++ b/src/AppInstallerCommonCore/Public/winget/ManifestCommon.h
@@ -123,6 +123,7 @@ namespace AppInstaller::Manifest
     {
         Unknown,
         PackageInUse,
+        PackageInUseByApplication,
         InstallInProgress,
         FileInUse,
         MissingDependency,