@@ -193,13 +193,11 @@
 			si.hStdOutput = _readPipe[1];
 			si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
 			si.dwFlags |= STARTF_USESTDHANDLES;
 
 			length = argumentsString.UTF16StringLength;
-			argumentsCopy = [self
-			    allocMemoryWithSize: sizeof(of_char16_t)
-					  count: length + 1];
+			argumentsCopy = of_malloc(length + 1, sizeof(of_char16_t));
 			memcpy(argumentsCopy, argumentsString.UTF16String,
 			    (length + 1) * 2);
 			@try {
 				if (!CreateProcessW(program.UTF16String,
 				    argumentsCopy, NULL, NULL, TRUE,
@@ -207,11 +205,11 @@
 				    [self of_wideEnvironmentForDictionary:
 				    environment], NULL, &si, &pi))
 					@throw [OFInitializationFailedException
 					    exceptionWithClass: self.class];
 			} @finally {
-				[self freeMemory: argumentsCopy];
+				free(argumentsCopy);
 			}
 		} else {
 			of_string_encoding_t encoding = [OFLocale encoding];
 			STARTUPINFO si;