diff --git a/README.md b/README.md
index 13f47527..ede25eb3 100644
--- a/README.md
+++ b/README.md
@@ -110,10 +110,9 @@ On some older versions of Windows you may need to surround parameter values with
 msiexec /i C:\Users\Administrator\Downloads\windows_exporter.msi ENABLED_COLLECTORS="ad,iis,logon,memory,process,tcp,thermalzone" TEXTFILE_DIR="C:\custom_metrics\"
 ```
 
-## Roadmap
-
-See [open issues](https://github.com/prometheus-community/windows_exporter/issues)
+## Supported versions
 
+windows_exporter supports Windows Server versions 2008R2 and later, and desktop Windows version 7 and later.
 
 ## Usage
 
diff --git a/installer/windows_exporter.wxs b/installer/windows_exporter.wxs
index 443ff68e..ff8a8900 100644
--- a/installer/windows_exporter.wxs
+++ b/installer/windows_exporter.wxs
@@ -11,7 +11,7 @@
   <Product Id="*" UpgradeCode="66a6eb5b-1fc2-4b14-a362-5ceec6413308"
            Name="windows_exporter" Version="$(var.Version)" Manufacturer="prometheus-community"
            Language="1033" Codepage="1252">
-    <Package Id="*" Manufacturer="prometheus-community" InstallScope="perMachine"
+    <Package Id="*" Manufacturer="prometheus-community" InstallScope="perMachine" InstallerVersion="500"
              Description="windows_exporter $(var.Version) installer" Compressed="yes" />
     <Media Id="1" Cabinet="windows_exporter.cab" EmbedCab="yes"/>
     <MajorUpgrade Schedule="afterInstallInitialize" DowngradeErrorMessage="A later version of [ProductName] is already installed. Setup will now exit." />