diff --git a/installers/Win/DPInst32.exe b/installers/Win/DPInst32.exe
new file mode 100644
index 0000000..4af96d0
Binary files /dev/null and b/installers/Win/DPInst32.exe differ
diff --git a/installers/Win/DPInst64.exe b/installers/Win/DPInst64.exe
new file mode 100644
index 0000000..1a09e67
Binary files /dev/null and b/installers/Win/DPInst64.exe differ
diff --git a/installers/Win/nsis_install_script.nsi b/installers/Win/nsis_install_script.nsi
index 6a5815b..6ccc8c9 100644
--- a/installers/Win/nsis_install_script.nsi
+++ b/installers/Win/nsis_install_script.nsi
@@ -24,7 +24,6 @@
 ; Instfiles page
 !insertmacro MUI_PAGE_INSTFILES
 ; Finish page
-!define MUI_FINISHPAGE_RUN "$INSTDIR\FTDI_2.08.14\DPInst.exe"
 !insertmacro MUI_PAGE_FINISH
 
 ; Uninstaller pages
@@ -41,6 +40,21 @@ InstallDir "$PROGRAMFILES\P-ROC\libpinproc"
 ShowInstDetails show
 ShowUnInstDetails show
 
+Function InstallFTDI
+
+  IfFileExists $WINDIR\SYSWOW64\*.* Is64bit Is32bit
+  Is32bit:
+    CopyFiles "$INSTDIR\FTDI_2.08.14\DPInst32.exe" "$INSTDIR\FTDI_2.08.14\DPInst.exe"
+    GOTO End32Bitvs64BitCheck
+
+  Is64bit:
+    CopyFiles "$INSTDIR\FTDI_2.08.14\DPInst64.exe" "$INSTDIR\FTDI_2.08.14\DPInst.exe"
+  End32Bitvs64BitCheck:
+
+  ExecWait '"$INSTDIR\FTDI_2.08.14\DPInst.exe"'
+
+FunctionEnd
+
 Section "MainSection" SEC01
   SetOutPath "$INSTDIR\FTDI_2.08.14\amd64"
   SetOverwrite try
@@ -53,7 +67,8 @@ Section "MainSection" SEC01
   File "C:\P-ROC\Install\FTDI_2.08.14\amd64\ftser2k.sys"
   File "C:\P-ROC\Install\FTDI_2.08.14\amd64\ftserui2.dll"
   SetOutPath "$INSTDIR\FTDI_2.08.14"
-  File "C:\P-ROC\Install\FTDI_2.08.14\DPInst.exe"
+  File "C:\P-ROC\Install\FTDI_2.08.14\DPInst32.exe"
+  File "C:\P-ROC\Install\FTDI_2.08.14\DPInst64.exe"
   File "C:\P-ROC\Install\FTDI_2.08.14\DPInst.xml"
   File "C:\P-ROC\Install\FTDI_2.08.14\ftd2xx.h"
   File "C:\P-ROC\Install\FTDI_2.08.14\ftdibus.cat"
@@ -81,6 +96,7 @@ Section "MainSection" SEC01
   SetOutPath "$INSTDIR"
   SetOverwrite ifnewer
   File "C:\P-ROC\libpinproc\installers\Win\README.txt"
+  Call InstallFTDI
 SectionEnd
 
 Section -Post
@@ -124,6 +140,8 @@ Section Uninstall
   Delete "$INSTDIR\FTDI_2.08.14\ftd2xx.h"
   Delete "$INSTDIR\FTDI_2.08.14\DPInst.xml"
   Delete "$INSTDIR\FTDI_2.08.14\DPInst.exe"
+  Delete "$INSTDIR\FTDI_2.08.14\DPInst32.exe"
+  Delete "$INSTDIR\FTDI_2.08.14\DPInst64.exe"
   Delete "$INSTDIR\FTDI_2.08.14\CDM 2 04 16 Release Info.doc"
   Delete "$INSTDIR\FTDI_2.08.14\amd64\ftserui2.dll"
   Delete "$INSTDIR\FTDI_2.08.14\amd64\ftser2k.sys"