diff --git a/replacements/scanFileAdvancedCall.new.java b/replacements/scanFileAdvancedCall.new.java
index 875850131..710ce0170 100644
--- a/replacements/scanFileAdvancedCall.new.java
+++ b/replacements/scanFileAdvancedCall.new.java
@@ -87,7 +87,7 @@ private com.squareup.okhttp.Call scanFileAdvancedValidateBeforeCall(java.io.Inpu
      * @throws ApiException If fail to serialize the request body object
      */
     public com.squareup.okhttp.Call scanFileAdvancedCall(java.io.InputStream inputFile, String fileName, Boolean allowExecutables, Boolean allowInvalidFiles, Boolean allowScripts, Boolean allowPasswordProtectedFiles, Boolean allowMacros, Boolean allowXmlExternalEntities, Boolean allowInsecureDeserialization, Boolean allowHtml, Boolean allowUnsafeArchives, Boolean allowOleEmbeddedObject, String options, String restrictFileTypes, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener) throws ApiException {
-        Object localVarPostBody = null;
+        Object localVarPostBody = inputFile;
 
         // create path and map variables
         String localVarPath = "/virus/scan/file/advanced";
@@ -124,8 +124,6 @@ public com.squareup.okhttp.Call scanFileAdvancedCall(java.io.InputStream inputFi
         localVarHeaderParams.put("restrictFileTypes", apiClient.parameterToString(restrictFileTypes));
 
         Map<String, Object> localVarFormParams = new HashMap<String, Object>();
-        if (inputFile != null)
-        localVarFormParams.put("inputFile", inputFile);
 
         final String[] localVarAccepts = {
             "application/json", "text/json", "application/xml", "text/xml"
@@ -134,7 +132,7 @@ public com.squareup.okhttp.Call scanFileAdvancedCall(java.io.InputStream inputFi
         if (localVarAccept != null) localVarHeaderParams.put("Accept", localVarAccept);
 
         final String[] localVarContentTypes = {
-            "multipart/form-data"
+            "application/octet-stream"
         };
         final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
         localVarHeaderParams.put("Content-Type", localVarContentType);
diff --git a/src/main/java/com/cloudmersive/client/ScanApi.java b/src/main/java/com/cloudmersive/client/ScanApi.java
index 130103167..1a1797998 100644
--- a/src/main/java/com/cloudmersive/client/ScanApi.java
+++ b/src/main/java/com/cloudmersive/client/ScanApi.java
@@ -129,7 +129,7 @@ private com.squareup.okhttp.Call scanFileAdvancedValidateBeforeCall(java.io.Inpu
      * @throws ApiException If fail to serialize the request body object
      */
     public com.squareup.okhttp.Call scanFileAdvancedCall(java.io.InputStream inputFile, String fileName, Boolean allowExecutables, Boolean allowInvalidFiles, Boolean allowScripts, Boolean allowPasswordProtectedFiles, Boolean allowMacros, Boolean allowXmlExternalEntities, Boolean allowInsecureDeserialization, Boolean allowHtml, Boolean allowUnsafeArchives, Boolean allowOleEmbeddedObject, String options, String restrictFileTypes, final ProgressResponseBody.ProgressListener progressListener, final ProgressRequestBody.ProgressRequestListener progressRequestListener) throws ApiException {
-        Object localVarPostBody = null;
+        Object localVarPostBody = inputFile;
 
         // create path and map variables
         String localVarPath = "/virus/scan/file/advanced";
@@ -166,8 +166,6 @@ public com.squareup.okhttp.Call scanFileAdvancedCall(java.io.InputStream inputFi
         localVarHeaderParams.put("restrictFileTypes", apiClient.parameterToString(restrictFileTypes));
 
         Map<String, Object> localVarFormParams = new HashMap<String, Object>();
-        if (inputFile != null)
-        localVarFormParams.put("inputFile", inputFile);
 
         final String[] localVarAccepts = {
             "application/json", "text/json", "application/xml", "text/xml"
@@ -176,7 +174,7 @@ public com.squareup.okhttp.Call scanFileAdvancedCall(java.io.InputStream inputFi
         if (localVarAccept != null) localVarHeaderParams.put("Accept", localVarAccept);
 
         final String[] localVarContentTypes = {
-            "multipart/form-data"
+            "application/octet-stream"
         };
         final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
         localVarHeaderParams.put("Content-Type", localVarContentType);
diff --git a/src/main/java/com/cloudmersive/client/invoker/ApiClient.java b/src/main/java/com/cloudmersive/client/invoker/ApiClient.java
index 26a01cf8e..7fa136adc 100644
--- a/src/main/java/com/cloudmersive/client/invoker/ApiClient.java
+++ b/src/main/java/com/cloudmersive/client/invoker/ApiClient.java
@@ -734,7 +734,10 @@ public <T> T deserialize(Response response, Type returnType) throws ApiException
      * @throws ApiException If fail to serialize the given object
      */
     public RequestBody serialize(Object obj, String contentType) throws ApiException {
-        if (obj instanceof byte[]) {
+        if (obj instanceof java.io.InputStream) {
+            // Stream body parameter support with chunked transfer encoding
+            return createRequestBodyFromInputStream(MediaType.parse(contentType), (java.io.InputStream) obj);
+        } else if (obj instanceof byte[]) {
             // Binary (byte array) body parameter support.
             return RequestBody.create(MediaType.parse(contentType), (byte[]) obj);
         } else if (obj instanceof File) {