[V8i C++] mdlSystem_expandCfgVar() usage

The documentation says that when mdlSystem_expandCfgVar() is used, you must free the resultant string by using mdlSystem_freeCfgVarBuffer(). Would that still apply when used in this manner?

char		*fileToFind="$(_USTN_WORKSPACEROOT)Standards\\Data\\myFile.dat\0";
char		keyinToSend[256];
sprintf_s( keyinToSend, sizeof(keyinToSend),"MyApp MyTask", mdlSystem_expandCfgVar(fileToFind) );

Thanks,

Bruce