diff --git a/tools/cli/appl/main-tool-client.cpp b/tools/cli/appl/main-tool-client.cpp
index 8bf0d1f..bb70160 100644
--- a/tools/cli/appl/main-tool-client.cpp
+++ b/tools/cli/appl/main-tool-client.cpp
@@ -523,14 +523,18 @@ int main(int _argc, const char *_argv[]) {
 					APPL_PRINT("    desc=" << proxy.sys.getDescription().wait().get());
 					APPL_PRINT("    version=" << proxy.sys.getVersion().wait().get());
 					APPL_PRINT("    type=" << proxy.sys.getType().wait().get());
-					APPL_PRINT("    extention=" << proxy.sys.getExtention().wait().get());
 					APPL_PRINT("    authors=" << proxy.sys.getAuthors().wait().get());
 					auto listFunctions = proxy.sys.getFunctions().wait().get();
 					APPL_PRINT("    functions: " << listFunctions.size());
 					for (auto &it: listFunctions) {
-						APPL_PRINT("        " << it);
-						APPL_PRINT("            prototype=" << proxy.sys.getFunctionPrototype(it).wait().get());
-						APPL_PRINT("            desc=" << proxy.sys.getFunctionDescription(it).wait().get());
+						#if 0
+							APPL_PRINT("        " << it);
+							APPL_PRINT("            prototype=" << proxy.sys.getFunctionPrototype(it).wait().get());
+							APPL_PRINT("            desc=" << proxy.sys.getFunctionDescription(it).wait().get());
+						#else
+							APPL_PRINT("        " << proxy.sys.getFunctionPrototype(it).wait().get());
+							APPL_PRINT("            " << proxy.sys.getFunctionDescription(it).wait().get());
+						#endif
 					}
 				}
 			} else {
diff --git a/zeus/ObjectIntrospect.cpp b/zeus/ObjectIntrospect.cpp
index c0be480..ca96d31 100644
--- a/zeus/ObjectIntrospect.cpp
+++ b/zeus/ObjectIntrospect.cpp
@@ -23,10 +23,6 @@ zeus::Future<std::string> zeus::ObjectIntrospect::getType() {
 	return m_obj.call("sys.getType");
 }
 
-zeus::Future<std::vector<std::string>> zeus::ObjectIntrospect::getExtention() {
-	return m_obj.call("sys.getExtention");
-}
-
 zeus::Future<std::vector<std::string>> zeus::ObjectIntrospect::getAuthors() {
 	return m_obj.call("sys.getAuthors");
 }
diff --git a/zeus/ObjectIntrospect.hpp b/zeus/ObjectIntrospect.hpp
index dd0517a..ef752f3 100644
--- a/zeus/ObjectIntrospect.hpp
+++ b/zeus/ObjectIntrospect.hpp
@@ -35,11 +35,6 @@ namespace zeus {
 			 * @return A future of the string type
 			 */
 			zeus::Future<std::string> getType();
-			/**
-			 * @brief Get the list of extention availlable of the object (more specific of the service)
-			 * @return A future on all extention availlable. Format: "typeExtention:xx.yy.zz"
-			 */
-			zeus::Future<std::vector<std::string>> getExtention();
 			/**
 			 * @brief get the list of all authors of the objects
 			 * @return A future on the list of authors. Format: "NAME surname <email@someware.xxx>"
diff --git a/zeus/message/Parameter.cpp b/zeus/message/Parameter.cpp
index b48b334..f568019 100644
--- a/zeus/message/Parameter.cpp
+++ b/zeus/message/Parameter.cpp
@@ -63,7 +63,8 @@ void zeus::message::Parameter::composeWith(const uint8_t* _buffer, uint32_t _len
 }
 
 zeus::message::ParamType zeus::message::Parameter::getParameterType(int32_t _id) const {
-	if (m_parameter.size() <= _id) {
+	if (    m_parameter.size() <= _id
+	     || _id < 0) {
 		ZEUS_ERROR("out of range Id for parameter ... " << _id << " have " << m_parameter.size());
 		return createType<void>();
 	}
@@ -124,7 +125,7 @@ zeus::message::ParamType zeus::message::Parameter::getParameterType(int32_t _id)
 const uint8_t* zeus::message::Parameter::getParameterPointer(int32_t _id) const {
 	const uint8_t* out = nullptr;
 	if (    m_parameter.size() <= _id
-	     && _id < 0) {
+	     || _id < 0) {
 		ZEUS_ERROR("out of range Id for parameter ... " << _id << " have " << m_parameter.size());
 		return out;
 	}
@@ -143,7 +144,7 @@ const uint8_t* zeus::message::Parameter::getParameterPointer(int32_t _id) const
 uint32_t zeus::message::Parameter::getParameterSize(int32_t _id) const {
 	int32_t out = 0;
 	if (    m_parameter.size() <= _id
-	     && _id < 0) {
+	     || _id < 0) {
 		ZEUS_ERROR("out of range Id for parameter ... " << _id << " have " << m_parameter.size());
 		return 0;
 	}