diff --git a/OPTIMA-INTEGRATION-TESTS.md b/OPTIMA-INTEGRATION-TESTS.md
index ebb81e2..f90b2ee 100644
--- a/OPTIMA-INTEGRATION-TESTS.md
+++ b/OPTIMA-INTEGRATION-TESTS.md
@@ -11,7 +11,8 @@ Testy z bazą są celowo wykonywane dopiero po ręcznym przygotowaniu i zarejest
 
 ## Kontrola bez zapisu
 
-Uruchom opublikowaną wersję x64:
+Uruchom wersję opublikowaną dla tej samej architektury co `op_base.dll` (`x86`
+jest domyślne, opcjonalnie użyj `.\publish-optima.ps1 -Architecture x64`):
 
 ```powershell
 .\release-optima\SmartB2B.Optima.Service.exe --config .\src\SmartB2B.Optima.Service\config\optima.json --check-config
diff --git a/README.md b/README.md
index ecb2b85..421e1df 100644
--- a/README.md
+++ b/README.md
@@ -79,13 +79,19 @@ nie kopiuje tej wartości automatycznie z `enova.json.sample` do istniejącej ko
 .\publish-enova.ps1
 ```
 
-Paczka Optimy jest samodzielnym buildem `win-x64`, zgodnym z Optimą 2026.5.1,
-i nie wymaga instalowania runtime .NET x64. Nie zawiera bibliotek ani licencji Comarch:
+Paczka Optimy jest domyślnie samodzielnym buildem `win-x86`, zgodnym z 32-bitową
+biblioteką COM na stanowisku produkcyjnym, i nie wymaga instalowania runtime .NET.
+Nie zawiera bibliotek ani licencji Comarch:
 
 ```powershell
 .\publish-optima.ps1
 ```
 
+Architektura procesu musi być identyczna z architekturą `op_base.dll` w katalogu
+Optimy. Dla instalacji z 64-bitową biblioteką COM zbuduj osobną paczkę poleceniem
+`.\publish-optima.ps1 -Architecture x64`. Jedna paczka nie obsługuje obu wariantów,
+ponieważ COM Optimy jest ładowany bezpośrednio do procesu.
+
 Wynik trafia do `release-optima`. Po uzupełnieniu `config/optima.json` instalację
 wykonuje `release-optima/daemon/install.cmd`. Usługa ma identyfikator
 `smartb2bsync-optima`.
diff --git a/publish-optima.ps1 b/publish-optima.ps1
index d8ad1b7..42cc3f3 100644
--- a/publish-optima.ps1
+++ b/publish-optima.ps1
@@ -1,7 +1,9 @@
 param(
     [string]$OutputPath = (Join-Path $PSScriptRoot "release-optima"),
     [ValidateSet("Debug", "Release")]
-    [string]$Configuration = "Release"
+    [string]$Configuration = "Release",
+    [ValidateSet("x86", "x64")]
+    [string]$Architecture = "x86"
 )
 
 $ErrorActionPreference = "Stop"
@@ -18,6 +20,7 @@ $winSwSource = Resolve-Path (Join-Path $daemonSource "smartb2bsync-optima.exe")
 $output = [System.IO.Path]::GetFullPath($OutputPath)
 $workspace = [System.IO.Path]::GetFullPath($PSScriptRoot)
 $daemonOutput = Join-Path $output "daemon"
+$runtimeIdentifier = "win-$Architecture"
 
 if (-not $output.StartsWith($workspace, [StringComparison]::OrdinalIgnoreCase) -or
     $output -eq $workspace -or
@@ -32,7 +35,7 @@ if (Test-Path -LiteralPath $output) {
 New-Item -ItemType Directory -Force -Path $output | Out-Null
 New-Item -ItemType Directory -Force -Path $daemonOutput | Out-Null
 
-& $dotnet publish $project -c $Configuration -r win-x64 --self-contained true -o $output
+& $dotnet publish $project -c $Configuration -r $runtimeIdentifier --self-contained true -p:PlatformTarget=$Architecture -o $output
 if ($LASTEXITCODE -ne 0) {
     throw "Publikowanie usługi Optimy nie powiodło się."
 }
@@ -76,4 +79,4 @@ try {
     $writer.Dispose()
 }
 
-Write-Host "Gotowa usługa Optimy (self-contained win-x64): $output"
+Write-Host "Gotowa usługa Optimy (self-contained $runtimeIdentifier): $output"
diff --git a/release-optima/Microsoft.CSharp.dll b/release-optima/Microsoft.CSharp.dll
index 3605d6d..caa2e49 100644
Binary files a/release-optima/Microsoft.CSharp.dll and b/release-optima/Microsoft.CSharp.dll differ
diff --git a/release-optima/Microsoft.Data.SqlClient.SNI.dll b/release-optima/Microsoft.Data.SqlClient.SNI.dll
index 12b8900..ec5ec13 100644
Binary files a/release-optima/Microsoft.Data.SqlClient.SNI.dll and b/release-optima/Microsoft.Data.SqlClient.SNI.dll differ
diff --git a/release-optima/Microsoft.DiaSymReader.Native.amd64.dll b/release-optima/Microsoft.DiaSymReader.Native.amd64.dll
deleted file mode 100644
index 92b355b..0000000
Binary files a/release-optima/Microsoft.DiaSymReader.Native.amd64.dll and /dev/null differ
diff --git a/release-optima/Microsoft.DiaSymReader.Native.x86.dll b/release-optima/Microsoft.DiaSymReader.Native.x86.dll
new file mode 100644
index 0000000..72aecec
Binary files /dev/null and b/release-optima/Microsoft.DiaSymReader.Native.x86.dll differ
diff --git a/release-optima/Microsoft.VisualBasic.Core.dll b/release-optima/Microsoft.VisualBasic.Core.dll
index fe94e85..9bd1f71 100644
Binary files a/release-optima/Microsoft.VisualBasic.Core.dll and b/release-optima/Microsoft.VisualBasic.Core.dll differ
diff --git a/release-optima/Microsoft.Win32.Registry.dll b/release-optima/Microsoft.Win32.Registry.dll
index 77a73b4..73b1dc4 100644
Binary files a/release-optima/Microsoft.Win32.Registry.dll and b/release-optima/Microsoft.Win32.Registry.dll differ
diff --git a/release-optima/SmartB2B.Optima.Adapter.dll b/release-optima/SmartB2B.Optima.Adapter.dll
index 7ad711f..0210119 100644
Binary files a/release-optima/SmartB2B.Optima.Adapter.dll and b/release-optima/SmartB2B.Optima.Adapter.dll differ
diff --git a/release-optima/SmartB2B.Optima.Adapter.pdb b/release-optima/SmartB2B.Optima.Adapter.pdb
index f615cc7..25e6355 100644
Binary files a/release-optima/SmartB2B.Optima.Adapter.pdb and b/release-optima/SmartB2B.Optima.Adapter.pdb differ
diff --git a/release-optima/SmartB2B.Optima.Service.deps.json b/release-optima/SmartB2B.Optima.Service.deps.json
index 1c6480c..4646eec 100644
--- a/release-optima/SmartB2B.Optima.Service.deps.json
+++ b/release-optima/SmartB2B.Optima.Service.deps.json
@@ -1,24 +1,24 @@
 {
   "runtimeTarget": {
-    "name": ".NETCoreApp,Version=v8.0/win-x64",
+    "name": ".NETCoreApp,Version=v8.0/win-x86",
     "signature": ""
   },
   "compilationOptions": {},
   "targets": {
     ".NETCoreApp,Version=v8.0": {},
-    ".NETCoreApp,Version=v8.0/win-x64": {
+    ".NETCoreApp,Version=v8.0/win-x86": {
       "SmartB2B.Optima.Service/1.0.0": {
         "dependencies": {
           "SmartB2B.Optima.Adapter": "1.0.0",
           "SmartB2B.Sync.Contracts": "1.0.0",
           "SmartB2B.Sync.Service": "1.0.0",
-          "runtimepack.Microsoft.NETCore.App.Runtime.win-x64": "8.0.24"
+          "runtimepack.Microsoft.NETCore.App.Runtime.win-x86": "8.0.24"
         },
         "runtime": {
           "SmartB2B.Optima.Service.dll": {}
         }
       },
-      "runtimepack.Microsoft.NETCore.App.Runtime.win-x64/8.0.24": {
+      "runtimepack.Microsoft.NETCore.App.Runtime.win-x86/8.0.24": {
         "runtime": {
           "Microsoft.CSharp.dll": {
             "assemblyVersion": "8.0.0.0",
@@ -694,7 +694,7 @@
           }
         },
         "native": {
-          "Microsoft.DiaSymReader.Native.amd64.dll": {
+          "Microsoft.DiaSymReader.Native.x86.dll": {
             "fileVersion": "14.42.34436.0"
           },
           "System.IO.Compression.Native.dll": {
@@ -724,7 +724,7 @@
           "mscordaccore.dll": {
             "fileVersion": "8.0.2426.7010"
           },
-          "mscordaccore_amd64_amd64_8.0.2426.7010.dll": {
+          "mscordaccore_x86_x86_8.0.2426.7010.dll": {
             "fileVersion": "8.0.2426.7010"
           },
           "mscordbi.dll": {
@@ -861,7 +861,7 @@
       },
       "Microsoft.Data.SqlClient.SNI.runtime/5.2.0": {
         "native": {
-          "runtimes/win-x64/native/Microsoft.Data.SqlClient.SNI.dll": {
+          "runtimes/win-x86/native/Microsoft.Data.SqlClient.SNI.dll": {
             "fileVersion": "5.2.0.0"
           }
         }
@@ -1481,7 +1481,7 @@
       "serviceable": false,
       "sha512": ""
     },
-    "runtimepack.Microsoft.NETCore.App.Runtime.win-x64/8.0.24": {
+    "runtimepack.Microsoft.NETCore.App.Runtime.win-x86/8.0.24": {
       "type": "runtimepack",
       "serviceable": false,
       "sha512": ""
@@ -2091,7 +2091,7 @@
     }
   },
   "runtimes": {
-    "win-x64": [
+    "win-x86": [
       "win",
       "any",
       "base"
diff --git a/release-optima/SmartB2B.Optima.Service.dll b/release-optima/SmartB2B.Optima.Service.dll
index b6d0625..884d560 100644
Binary files a/release-optima/SmartB2B.Optima.Service.dll and b/release-optima/SmartB2B.Optima.Service.dll differ
diff --git a/release-optima/SmartB2B.Optima.Service.exe b/release-optima/SmartB2B.Optima.Service.exe
index 151e7da..93e629e 100644
Binary files a/release-optima/SmartB2B.Optima.Service.exe and b/release-optima/SmartB2B.Optima.Service.exe differ
diff --git a/release-optima/SmartB2B.Optima.Service.pdb b/release-optima/SmartB2B.Optima.Service.pdb
index 24e6ccd..fd9b9f8 100644
Binary files a/release-optima/SmartB2B.Optima.Service.pdb and b/release-optima/SmartB2B.Optima.Service.pdb differ
diff --git a/release-optima/SmartB2B.Optima.Service.runtimeconfig.json b/release-optima/SmartB2B.Optima.Service.runtimeconfig.json
index 333b515..f1771a2 100644
--- a/release-optima/SmartB2B.Optima.Service.runtimeconfig.json
+++ b/release-optima/SmartB2B.Optima.Service.runtimeconfig.json
@@ -8,7 +8,6 @@
       }
     ],
     "configProperties": {
-      "Sentry.Native.IsEnabled": true,
       "System.Reflection.Metadata.MetadataUpdater.IsSupported": false,
       "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": false
     }
diff --git a/release-optima/SmartB2B.Sync.Contracts.dll b/release-optima/SmartB2B.Sync.Contracts.dll
index e8cb390..4c40c3f 100644
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diff --git a/release-optima/SmartB2B.Sync.Contracts.pdb b/release-optima/SmartB2B.Sync.Contracts.pdb
index 16a3f29..2fa4b64 100644
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diff --git a/release-optima/SmartB2B.Sync.Service.dll b/release-optima/SmartB2B.Sync.Service.dll
index d928549..7c65636 100644
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diff --git a/release-optima/SmartB2B.Sync.Service.pdb b/release-optima/SmartB2B.Sync.Service.pdb
index 1afdf80..2a7d7bd 100644
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index fc91586..750b9f0 100644
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index cadd006..750a057 100644
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index ffdf6e3..07589a8 100644
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diff --git a/release-optima/System.Net.WebProxy.dll b/release-optima/System.Net.WebProxy.dll
index c03d947..3f0a058 100644
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index d8f5ace..a72dfc3 100644
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index 5f5f296..46dc81b 100644
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index b8563c6..684a7e3 100644
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index 4e401e4..5e8ee97 100644
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diff --git a/release-optima/System.Private.Uri.dll b/release-optima/System.Private.Uri.dll
index 11d5d70..a401c11 100644
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diff --git a/release-optima/System.Private.Xml.Linq.dll b/release-optima/System.Private.Xml.Linq.dll
index 8d19450..ae39811 100644
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diff --git a/release-optima/System.Private.Xml.dll b/release-optima/System.Private.Xml.dll
index 3b45bf4..3cce9f7 100644
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diff --git a/release-optima/System.Reflection.DispatchProxy.dll b/release-optima/System.Reflection.DispatchProxy.dll
index 7188149..9bb4da9 100644
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diff --git a/release-optima/System.Reflection.Emit.dll b/release-optima/System.Reflection.Emit.dll
index 9046d28..d8b4a20 100644
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index 0daab5d..a3013f7 100644
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index 9e25ade..89ab0b4 100644
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diff --git a/release-optima/System.Resources.Writer.dll b/release-optima/System.Resources.Writer.dll
index 6eb95b9..4078836 100644
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diff --git a/release-optima/System.Runtime.CompilerServices.VisualC.dll b/release-optima/System.Runtime.CompilerServices.VisualC.dll
index 794d40d..92335ae 100644
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diff --git a/release-optima/System.Runtime.InteropServices.JavaScript.dll b/release-optima/System.Runtime.InteropServices.JavaScript.dll
index 8ba827e..9a6b9c1 100644
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diff --git a/release-optima/System.Runtime.InteropServices.dll b/release-optima/System.Runtime.InteropServices.dll
index cdc28e2..27a7010 100644
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diff --git a/release-optima/System.Runtime.Numerics.dll b/release-optima/System.Runtime.Numerics.dll
index 0659dbf..b32fbcb 100644
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diff --git a/release-optima/System.Runtime.Serialization.Formatters.dll b/release-optima/System.Runtime.Serialization.Formatters.dll
index 97fc9f1..d489d9a 100644
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diff --git a/release-optima/System.Runtime.Serialization.Primitives.dll b/release-optima/System.Runtime.Serialization.Primitives.dll
index 7567dd9..455ab88 100644
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diff --git a/release-optima/System.Security.AccessControl.dll b/release-optima/System.Security.AccessControl.dll
index 6b17343..849a26c 100644
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diff --git a/release-optima/System.Security.Claims.dll b/release-optima/System.Security.Claims.dll
index 721b7dc..e9b6694 100644
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diff --git a/release-optima/System.Security.Cryptography.dll b/release-optima/System.Security.Cryptography.dll
index 687b75f..7eed449 100644
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diff --git a/release-optima/System.Security.Principal.Windows.dll b/release-optima/System.Security.Principal.Windows.dll
index 227ca59..baa77a0 100644
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diff --git a/release-optima/System.Text.Encoding.CodePages.dll b/release-optima/System.Text.Encoding.CodePages.dll
index d2357f1..11f06e7 100644
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diff --git a/release-optima/System.Text.Encodings.Web.dll b/release-optima/System.Text.Encodings.Web.dll
index a2ca428..6dbc35b 100644
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diff --git a/release-optima/System.Text.Json.dll b/release-optima/System.Text.Json.dll
index 8bb6aca..ad7a94b 100644
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diff --git a/release-optima/System.Text.RegularExpressions.dll b/release-optima/System.Text.RegularExpressions.dll
index af38846..7f181bd 100644
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diff --git a/release-optima/System.Threading.Channels.dll b/release-optima/System.Threading.Channels.dll
index 253ab0f..fed8d64 100644
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diff --git a/release-optima/System.Threading.Tasks.Dataflow.dll b/release-optima/System.Threading.Tasks.Dataflow.dll
index ac5a009..719961d 100644
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diff --git a/release-optima/System.Threading.Tasks.Parallel.dll b/release-optima/System.Threading.Tasks.Parallel.dll
index cd76a2c..c426111 100644
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diff --git a/release-optima/System.Threading.dll b/release-optima/System.Threading.dll
index 3d347e7..792c84a 100644
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diff --git a/release-optima/System.Transactions.Local.dll b/release-optima/System.Transactions.Local.dll
index a4b14f8..1effc77 100644
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diff --git a/release-optima/System.Web.HttpUtility.dll b/release-optima/System.Web.HttpUtility.dll
index f55e8dc..e15e820 100644
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diff --git a/release-optima/System.Xml.XPath.XDocument.dll b/release-optima/System.Xml.XPath.XDocument.dll
index 2a995d9..573fb98 100644
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diff --git a/release-optima/clretwrc.dll b/release-optima/clretwrc.dll
index 0eb8ca5..0b7a241 100644
Binary files a/release-optima/clretwrc.dll and b/release-optima/clretwrc.dll differ
diff --git a/release-optima/clrgc.dll b/release-optima/clrgc.dll
index a312827..a33f75f 100644
Binary files a/release-optima/clrgc.dll and b/release-optima/clrgc.dll differ
diff --git a/release-optima/clrjit.dll b/release-optima/clrjit.dll
index a858654..62c8483 100644
Binary files a/release-optima/clrjit.dll and b/release-optima/clrjit.dll differ
diff --git a/release-optima/coreclr.dll b/release-optima/coreclr.dll
index a22164d..ac20801 100644
Binary files a/release-optima/coreclr.dll and b/release-optima/coreclr.dll differ
diff --git a/release-optima/createdump.exe b/release-optima/createdump.exe
index 730ef4f..5257112 100644
Binary files a/release-optima/createdump.exe and b/release-optima/createdump.exe differ
diff --git a/release-optima/daemon/smartb2bsync-optima.xml b/release-optima/daemon/smartb2bsync-optima.xml
index 1062fe5..9b01cba 100644
--- a/release-optima/daemon/smartb2bsync-optima.xml
+++ b/release-optima/daemon/smartb2bsync-optima.xml
@@ -36,7 +36,7 @@
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.CSharp.dll" to="%BASE%\..\Microsoft.CSharp.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.Data.SqlClient.dll" to="%BASE%\..\Microsoft.Data.SqlClient.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.Data.SqlClient.SNI.dll" to="%BASE%\..\Microsoft.Data.SqlClient.SNI.dll" failOnError="false" />
-  <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.DiaSymReader.Native.amd64.dll" to="%BASE%\..\Microsoft.DiaSymReader.Native.amd64.dll" failOnError="false" />
+  <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.DiaSymReader.Native.x86.dll" to="%BASE%\..\Microsoft.DiaSymReader.Native.x86.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.Extensions.DependencyInjection.Abstractions.dll" to="%BASE%\..\Microsoft.Extensions.DependencyInjection.Abstractions.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.Extensions.Logging.Abstractions.dll" to="%BASE%\..\Microsoft.Extensions.Logging.Abstractions.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.Identity.Client.dll" to="%BASE%\..\Microsoft.Identity.Client.dll" failOnError="false" />
@@ -52,7 +52,7 @@
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.VisualBasic.dll" to="%BASE%\..\Microsoft.VisualBasic.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.Win32.Primitives.dll" to="%BASE%\..\Microsoft.Win32.Primitives.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/Microsoft.Win32.Registry.dll" to="%BASE%\..\Microsoft.Win32.Registry.dll" failOnError="false" />
-  <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/mscordaccore_amd64_amd64_8.0.2426.7010.dll" to="%BASE%\..\mscordaccore_amd64_amd64_8.0.2426.7010.dll" failOnError="false" />
+  <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/mscordaccore_x86_x86_8.0.2426.7010.dll" to="%BASE%\..\mscordaccore_x86_x86_8.0.2426.7010.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/mscordaccore.dll" to="%BASE%\..\mscordaccore.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/mscordbi.dll" to="%BASE%\..\mscordbi.dll" failOnError="false" />
   <download from="https://demo.smartb2b.eu/files/smartb2b-sync-optima/mscorlib.dll" to="%BASE%\..\mscorlib.dll" failOnError="false" />
diff --git a/release-optima/hostfxr.dll b/release-optima/hostfxr.dll
index c4ce04e..008d67f 100644
Binary files a/release-optima/hostfxr.dll and b/release-optima/hostfxr.dll differ
diff --git a/release-optima/hostpolicy.dll b/release-optima/hostpolicy.dll
index 53f778a..3ce9583 100644
Binary files a/release-optima/hostpolicy.dll and b/release-optima/hostpolicy.dll differ
diff --git a/release-optima/mscordaccore.dll b/release-optima/mscordaccore.dll
index 75db57d..f8873a8 100644
Binary files a/release-optima/mscordaccore.dll and b/release-optima/mscordaccore.dll differ
diff --git a/release-optima/mscordaccore_amd64_amd64_8.0.2426.7010.dll b/release-optima/mscordaccore_amd64_amd64_8.0.2426.7010.dll
deleted file mode 100644
index 75db57d..0000000
Binary files a/release-optima/mscordaccore_amd64_amd64_8.0.2426.7010.dll and /dev/null differ
diff --git a/release-optima/mscordaccore_x86_x86_8.0.2426.7010.dll b/release-optima/mscordaccore_x86_x86_8.0.2426.7010.dll
new file mode 100644
index 0000000..f8873a8
Binary files /dev/null and b/release-optima/mscordaccore_x86_x86_8.0.2426.7010.dll differ
diff --git a/release-optima/mscordbi.dll b/release-optima/mscordbi.dll
index f7e78d2..a4930de 100644
Binary files a/release-optima/mscordbi.dll and b/release-optima/mscordbi.dll differ
diff --git a/release-optima/mscorrc.dll b/release-optima/mscorrc.dll
index f6c4e58..12102e0 100644
Binary files a/release-optima/mscorrc.dll and b/release-optima/mscorrc.dll differ
diff --git a/release-optima/msquic.dll b/release-optima/msquic.dll
index 2a1350a..69e8841 100644
Binary files a/release-optima/msquic.dll and b/release-optima/msquic.dll differ
diff --git a/src/SmartB2B.Optima.Service/SmartB2B.Optima.Service.csproj b/src/SmartB2B.Optima.Service/SmartB2B.Optima.Service.csproj
index 8928904..57bf380 100644
--- a/src/SmartB2B.Optima.Service/SmartB2B.Optima.Service.csproj
+++ b/src/SmartB2B.Optima.Service/SmartB2B.Optima.Service.csproj
@@ -6,7 +6,8 @@
     <Nullable>enable</Nullable>
     <AssemblyName>SmartB2B.Optima.Service</AssemblyName>
     <Version>1.0.0</Version>
-    <PlatformTarget>x64</PlatformTarget>
+    <PlatformTarget>x86</PlatformTarget>
+    <RuntimeIdentifier>win-x86</RuntimeIdentifier>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="../SmartB2B.Optima.Adapter/SmartB2B.Optima.Adapter.csproj" />
diff --git a/tests/SmartB2B.Optima.IntegrationTests/SmartB2B.Optima.IntegrationTests.csproj b/tests/SmartB2B.Optima.IntegrationTests/SmartB2B.Optima.IntegrationTests.csproj
index 1046dd2..b98f133 100644
--- a/tests/SmartB2B.Optima.IntegrationTests/SmartB2B.Optima.IntegrationTests.csproj
+++ b/tests/SmartB2B.Optima.IntegrationTests/SmartB2B.Optima.IntegrationTests.csproj
@@ -4,7 +4,8 @@
     <TargetFramework>net8.0-windows</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
-    <PlatformTarget>x64</PlatformTarget>
+    <PlatformTarget>x86</PlatformTarget>
+    <RuntimeIdentifier>win-x86</RuntimeIdentifier>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="../../src/SmartB2B.Optima.Adapter/SmartB2B.Optima.Adapter.csproj" />
diff --git a/tests/SmartB2B.Optima.Tests/Program.cs b/tests/SmartB2B.Optima.Tests/Program.cs
index 30fc72f..d1130ca 100644
--- a/tests/SmartB2B.Optima.Tests/Program.cs
+++ b/tests/SmartB2B.Optima.Tests/Program.cs
@@ -284,7 +284,7 @@ file sealed class CapturingComFacade : IOptimaComFacade
     public int MaximumConcurrency => _maximumConcurrency;
 
     public OptimaRuntimeInfo InspectRuntime(string installationPath) =>
-        new("2026.5.1.6382", "CDNBase.Application", "x64");
+        new("2026.5.1.6382", "CDNBase.Application", "x86");
 
     public void CheckConnection(ErpAdapterConfiguration configuration) => Capture(() => { });