diff --git a/bin/windows/contrib/4.3/StanEstimators_0.0.0.9000.zip b/bin/windows/contrib/4.3/StanEstimators_0.0.0.9000.zip
index ff89233..1be927f 100644
Binary files a/bin/windows/contrib/4.3/StanEstimators_0.0.0.9000.zip and b/bin/windows/contrib/4.3/StanEstimators_0.0.0.9000.zip differ
diff --git a/binaries/StanEstimators-windows-latest-release/windows-latest_release/StanEstimators_0.0.0.9000.zip b/binaries/StanEstimators-windows-latest-release/windows-latest_release/StanEstimators_0.0.0.9000.zip
index ff89233..1be927f 100644
Binary files a/binaries/StanEstimators-windows-latest-release/windows-latest_release/StanEstimators_0.0.0.9000.zip and b/binaries/StanEstimators-windows-latest-release/windows-latest_release/StanEstimators_0.0.0.9000.zip differ
diff --git a/inst/include/cmdstan/command_helper.hpp b/inst/include/cmdstan/command_helper.hpp
index 82013ff..76de92f 100644
--- a/inst/include/cmdstan/command_helper.hpp
+++ b/inst/include/cmdstan/command_helper.hpp
@@ -179,7 +179,7 @@ inline shared_context_ptr get_var_context(const std::string &file) {
     return std::make_shared<stan::io::empty_var_context>();
   }
   Rcpp::Rcout << "f2" << std::endl;
-  std::ifstream stream = safe_open(file);
+  std::fstream stream(file.c_str(), std::fstream::in);
   Rcpp::Rcout << "f3" << std::endl;
   if (get_suffix(file) == ".json") {
   Rcpp::Rcout << "f4" << std::endl;