+static std::string prevInstallPkgId = std::string("");
+static std::string prevFinishPkgId = std::string("");
+
+// initialize static vector to support multi-package install scenario
+static void tacInitialize()
+{
+ nugetPackagesAssembliesSha.clear();
+ tacDB.clear();
+ createDirectories.clear();
+ createLibraries.clear();
+ updateTac.clear();
+ updateTlc.clear();
+}