diff --git a/StaticResourceAssert/Common.cpp b/StaticResourceAssert/Common.cpp
index ecfbd51..bc772bf 100644
--- a/StaticResourceAssert/Common.cpp
+++ b/StaticResourceAssert/Common.cpp
@@ -1,6 +1,8 @@
 
 #include "include/Common.h"
 
+#include <cctype>
+
 #ifdef _WIN32
 #include "Windows.h"
 #endif
@@ -59,6 +61,27 @@ std::size_t replace_all(std::string& inout, std::string_view what, std::string_v
 	return count;
 }
 
+void TrimStartWhitespace(std::string& inout) {
+	if(inout.empty()) {
+		return;
+	}
+	auto beginIter = inout.begin();
+	while(inout.end() != beginIter && std::isspace(*beginIter)) {
+		beginIter = inout.erase(beginIter);
+	}	
+}
+
+void TrimEndWhitespace(std::string& inout) {
+	if(inout.empty()) {
+		return;
+	}
+	auto endIter = inout.end()-1;
+	while(inout.end() != endIter && std::isspace(*endIter)) {
+		inout.pop_back();
+		endIter--;
+	}
+}
+
 bool HasArg( const char* argStr, int argc, char** argv )
 {
 	for( int c = 0; c < argc; c++ )
diff --git a/StaticResourceAssert/Main.cpp b/StaticResourceAssert/Main.cpp
index 600215f..ab9f471 100644
--- a/StaticResourceAssert/Main.cpp
+++ b/StaticResourceAssert/Main.cpp
@@ -40,6 +40,16 @@ int main( int argc, char** argv )
 
 	std::string directoryStr = GetArgData( "-d", argc, argv );
 	replace_all( directoryStr, "\\", "/" );
+	replace_all( directoryStr, "\\", "" );
+	replace_all( directoryStr, "<", "" );
+	replace_all( directoryStr, ">", "" );
+	replace_all( directoryStr, "\"", "" );
+	replace_all( directoryStr, "|", "" );
+	replace_all( directoryStr, "?", "" );
+	replace_all( directoryStr, "*", "" );
+
+	TrimStartWhitespace(directoryStr);
+	TrimEndWhitespace(directoryStr);
 
 	std::string outputHeaderStr = "static_resource_assert_api.h";
 	if( HasArg( "-o", argc, argv ) )
diff --git a/StaticResourceAssert/include/Common.h b/StaticResourceAssert/include/Common.h
index d4f20dc..163b5c3 100644
--- a/StaticResourceAssert/include/Common.h
+++ b/StaticResourceAssert/include/Common.h
@@ -20,6 +20,9 @@ void __pstream(const std::ostream &t, bool bNewline = true );
 
 std::size_t replace_all(std::string& inout, std::string_view what, std::string_view with);
 
+void TrimStartWhitespace(std::string& inout);
+
+void TrimEndWhitespace(std::string& inout);
 
 // Program arguments