diff --git a/mk/dist.mk b/mk/dist.mk
index 99fad94bf76ab..4d86af37171b4 100644
--- a/mk/dist.mk
+++ b/mk/dist.mk
@@ -112,7 +112,7 @@ distcheck-tar-src: dist-tar-src
 
 ifdef CFG_ISCC
 
-PKG_EXE = dist/$(PKG_NAME)-install.exe
+PKG_EXE = dist/$(PKG_NAME)-$(CFG_BUILD).exe
 
 %.iss: $(S)src/etc/pkg/%.iss
 	cp $< $@
@@ -123,7 +123,7 @@ PKG_EXE = dist/$(PKG_NAME)-install.exe
 $(PKG_EXE): rust.iss modpath.iss upgrade.iss LICENSE.txt rust-logo.ico \
             $(CSREQ3_T_$(CFG_BUILD)_H_$(CFG_BUILD)) \
             dist-prepare-win
-	$(CFG_PYTHON) $(S)src/etc/copy-runtime-deps.py tmp/dist/win/bin
+	$(CFG_PYTHON) $(S)src/etc/copy-runtime-deps.py tmp/dist/win/bin $(CFG_BUILD)
 	@$(call E, ISCC: $@)
 	$(Q)"$(CFG_ISCC)" $<
 
diff --git a/src/etc/copy-runtime-deps.py b/src/etc/copy-runtime-deps.py
index 8aab3f18bdad0..fd829cd0ab70f 100644
--- a/src/etc/copy-runtime-deps.py
+++ b/src/etc/copy-runtime-deps.py
@@ -12,8 +12,8 @@
 
 import snapshot, sys, os, shutil
 
-def copy_runtime_deps(dest_dir):
-    for path in snapshot.get_winnt_runtime_deps():
+def copy_runtime_deps(dest_dir, triple):
+    for path in snapshot.get_winnt_runtime_deps(snapshot.get_platform(triple)):
         shutil.copy(path, dest_dir)
 
     lic_dest = os.path.join(dest_dir, "third-party")
@@ -21,4 +21,4 @@ def copy_runtime_deps(dest_dir):
         shutil.rmtree(lic_dest) # copytree() won't overwrite existing files
     shutil.copytree(os.path.join(os.path.dirname(__file__), "third-party"), lic_dest)
 
-copy_runtime_deps(sys.argv[1])
+copy_runtime_deps(sys.argv[1], sys.argv[2])
diff --git a/src/etc/pkg/rust.iss b/src/etc/pkg/rust.iss
index 053fe34952c95..08c28c4399bdd 100644
--- a/src/etc/pkg/rust.iss
+++ b/src/etc/pkg/rust.iss
@@ -1,6 +1,7 @@
 #define CFG_VERSION_WIN GetEnv("CFG_VERSION_WIN")
 #define CFG_RELEASE GetEnv("CFG_RELEASE")
 #define CFG_PACKAGE_NAME GetEnv("CFG_PACKAGE_NAME")
+#define CFG_BUILD GetEnv("CFG_BUILD")
 
 [Setup]
 
@@ -20,7 +21,7 @@ DisableStartupPrompt=true
 
 OutputDir=.\dist\
 SourceDir=.\
-OutputBaseFilename={#CFG_PACKAGE_NAME}-install
+OutputBaseFilename={#CFG_PACKAGE_NAME}-{#CFG_BUILD}
 DefaultDirName={pf32}\Rust
 
 Compression=lzma2/ultra
diff --git a/src/etc/snapshot.py b/src/etc/snapshot.py
index 82302da17b850..24255c0cc5df2 100644
--- a/src/etc/snapshot.py
+++ b/src/etc/snapshot.py
@@ -39,8 +39,10 @@ def scrub(b):
     "freebsd": ["bin/rustc"],
     }
 
-winnt_runtime_deps = ["libgcc_s_dw2-1.dll",
-                      "libstdc++-6.dll"]
+winnt_runtime_deps_32 = ["libgcc_s_dw2-1.dll",
+                         "libstdc++-6.dll"]
+winnt_runtime_deps_64 = ["libgcc_s_seh-1.dll",
+                         "libstdc++-6.dll"]
 
 def parse_line(n, line):
   global snapshotfile
@@ -146,10 +148,14 @@ def hash_file(x):
     return scrub(h.hexdigest())
 
 # Returns a list of paths of Rust's system runtime dependencies
-def get_winnt_runtime_deps():
+def get_winnt_runtime_deps(platform):
+    if platform == "winnt-x86_64":
+      deps = winnt_runtime_deps_64
+    else:
+      deps = winnt_runtime_deps_32
     runtime_deps = []
-    path_dirs = os.environ["PATH"].split(';')
-    for name in winnt_runtime_deps:
+    path_dirs = os.environ["PATH"].split(os.pathsep)
+    for name in deps:
       for dir in path_dirs:
         matches = glob.glob(os.path.join(dir, name))
         if matches:
@@ -189,7 +195,7 @@ def in_tar_name(fn):
                         "Please make a clean build." % "\n  ".join(matches))
 
     if kernel=="winnt":
-      for path in get_winnt_runtime_deps():
+      for path in get_winnt_runtime_deps(platform):
         tar.add(path, "rust-stage0/bin/" + os.path.basename(path))
       tar.add(os.path.join(os.path.dirname(__file__), "third-party"),
               "rust-stage0/bin/third-party")