diff --git a/extensions/copyclipboard.cpp b/extensions/copyclipboard.cpp
index 1104c8a..920d0f1 100644
--- a/extensions/copyclipboard.cpp
+++ b/extensions/copyclipboard.cpp
@@ -1,8 +1,8 @@
 #include "extensions.h"
 
-bool ProcessSentence(std::wstring& sentence, const InfoForExtension* miscInfo)
+bool ProcessSentence(std::wstring& sentence, SentenceInfo sentenceInfo)
 {
-	if (GetProperty("current select", miscInfo) && GetProperty("hook address", miscInfo) != -1)
+	if (sentenceInfo["current select"] == 1 && sentenceInfo["hook address"] != -1)
 	{
 		HGLOBAL hMem = GlobalAlloc(GMEM_MOVEABLE, (sentence.size() + 2) * sizeof(wchar_t));
 		memcpy(GlobalLock(hMem), sentence.c_str(), (sentence.size() + 2) * sizeof(wchar_t));
diff --git a/extensions/extensions.h b/extensions/extensions.h
index a05dc54..6231d42 100644
--- a/extensions/extensions.h
+++ b/extensions/extensions.h
@@ -7,34 +7,29 @@
 
 struct InfoForExtension
 {
-	const char* propertyName;
-	int64_t propertyValue;
-	InfoForExtension* nextProperty;
+	const char* name;
+	int64_t value;
+	InfoForExtension* next;
 };
 
-// Traverses linked list to find info.
-int54_t GetProperty(const char* propertyName, const InfoForExtension* miscInfo)
+struct SentenceInfo
 {
-	const InfoForExtension* miscInfoTraverser = miscInfo;
-	while (miscInfoTraverser != nullptr)
-		if (strcmp(propertyName, miscInfoTraverser->propertyName) == 0) return miscInfoTraverser->propertyValue;
-		else miscInfoTraverser = miscInfoTraverser->nextProperty;
+	const InfoForExtension* list;
+	// Traverse linked list to find info.
+	int64_t operator[](std::string propertyName)
+	{
+		for (auto i = list; i != nullptr; i = i->next) if (propertyName == i->name) return i->value;
+		return 0;
+	}
+};
 
-	return 0;
-}
-
-/**
-	* Param sentence: sentence received by NextHooker (UTF-16).
-	* Param miscInfo: pointer to start of singly linked list containing misc info about the sentence.
-	* Return value: whether the sentence was modified.
-	* NextHooker will display the sentence after all extensions have had a chance to process and/or modify it.
-	* THIS FUNCTION MAY BE RUN SEVERAL TIMES CONCURRENTLY: PLEASE ENSURE THAT IT IS THREAD SAFE!
-*/
-bool ProcessSentence(std::wstring& sentence, const InfoForExtension* miscInfo);
+bool ProcessSentence(std::wstring& sentence, SentenceInfo sentenceInfo);
 
 /**
+	* You shouldn't mess with this or even look at it unless you're certain you know what you're doing.
 	* Param sentence: pointer to sentence received by NextHooker (UTF-16).
 	* You should not modify this sentence. If you want NextHooker to receive a modified sentence, copy it into your own buffer and return that.
+	* Please allocate the buffer using malloc() and not new[] or something else: NextHooker uses free() to free it.
 	* Param miscInfo: pointer to start of singly linked list containing misc info about the sentence.
 	* Return value: pointer to sentence NextHooker takes for future processing and display.
 	* Return 'sentence' unless you created a new sentence/buffer as mentioned above.
@@ -44,11 +39,12 @@ bool ProcessSentence(std::wstring& sentence, const InfoForExtension* miscInfo);
 extern "C" __declspec(dllexport) const wchar_t* OnNewSentence(const wchar_t* sentenceArr, const InfoForExtension* miscInfo)
 {
 	std::wstring sentence(sentenceArr);
-	if (ProcessSentence(sentence, miscInfo))
+	if (ProcessSentence(sentence, SentenceInfo{ miscInfo }))
 	{
+		// No need to worry about freeing this: NextHooker does it for you.
 		wchar_t* newSentence = (wchar_t*)malloc((sentence.size() + 1) * sizeof(wchar_t*));
-		wcscpy(newSentence, sentence.c_str());
+		wcscpy_s(newSentence, sentence.size() + 1, sentence.c_str());
 		return newSentence;
 	}
 	else return sentenceArr;
-}
\ No newline at end of file
+}
diff --git a/extensions/extranewlines.cpp b/extensions/extranewlines.cpp
index f8ac364..210c491 100644
--- a/extensions/extranewlines.cpp
+++ b/extensions/extranewlines.cpp
@@ -1,8 +1,8 @@
 #include "extensions.h"
 
-bool ProcessSentence(std::wstring& sentence, const InfoForExtension* miscInfo)
+bool ProcessSentence(std::wstring& sentence, SentenceInfo sentenceInfo)
 {
-	if (GetProperty("hook address", miscInfo) == -1) return false;
+	if (sentenceInfo["hook address"] == -1) return false;
 	sentence += L"\r\n";
 	return true;
 }
\ No newline at end of file
diff --git a/extensions/googletranslate.cpp b/extensions/googletranslate.cpp
index a59f4dc..33562d5 100644
--- a/extensions/googletranslate.cpp
+++ b/extensions/googletranslate.cpp
@@ -30,7 +30,7 @@ std::wstring GetTranslationUri(const wchar_t* text, unsigned int TKK)
 	return std::wstring(L"/translate_a/single?client=t&dt=ld&dt=rm&dt=t&tk=") + std::to_wstring(a) + L"." + std::to_wstring(b) + L"&q=" + std::wstring(text);
 }
 
-bool ProcessSentence(std::wstring& sentence, const InfoForExtension* miscInfo)
+bool ProcessSentence(std::wstring& sentence, SentenceInfo sentenceInfo)
 {
 	static HINTERNET internet = NULL;
 	if (!internet) internet = WinHttpOpen(L"Mozilla/5.0 NextHooker", WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, NULL, NULL, 0);
@@ -38,7 +38,7 @@ bool ProcessSentence(std::wstring& sentence, const InfoForExtension* miscInfo)
 
 	std::wstring translation(L"");
 
-	if (GetProperty("hook address", miscInfo) == -1) return false;
+	if (sentenceInfo["hook address"] == -1) return false;
 
 	if (internet)
 	{
diff --git a/extensions/removerepeat.cpp b/extensions/removerepeat.cpp
index 8ba0369..425db4d 100644
--- a/extensions/removerepeat.cpp
+++ b/extensions/removerepeat.cpp
@@ -51,12 +51,12 @@ bool RemoveRepeatedSentences(std::wstring& sentence, int handle)
 	return false;
 }
 
-bool ProcessSentence(std::wstring& sentence, const InfoForExtension* miscInfo)
+bool ProcessSentence(std::wstring& sentence, SentenceInfo sentenceInfo)
 {
-	if (GetProperty("hook address", miscInfo) == -1) return false;
+	if (sentenceInfo["hook address"] == -1) return false;
 	bool ret = false;
 	ret |= RemoveRepeatedChars(sentence);
 	ret |= RemoveCyclicRepeats(sentence);
-	ret |= RemoveRepeatedSentences(sentence, GetProperty("text handle", miscInfo));
+	ret |= RemoveRepeatedSentences(sentence, sentenceInfo["text handle"]);
 	return ret;
 }
\ No newline at end of file