diff --git a/SiaDrive/Resource.h b/SiaDrive/Resource.h
index 4b9965d..d1a325c 100644
Binary files a/SiaDrive/Resource.h and b/SiaDrive/Resource.h differ
diff --git a/SiaDrive/SiaDrive.htm b/SiaDrive/SiaDrive.htm
index e8c269a..7045e33 100644
--- a/SiaDrive/SiaDrive.htm
+++ b/SiaDrive/SiaDrive.htm
@@ -76,9 +76,10 @@
     <TABLE WIDTH=100%>
         <TR WIDTH=100%>
             <TD ALIGN=CENTER VALIGN=TOP>
-                <input id="wallet_btn" type="button" value="Wallet"/>
-                <input id="host_btn" type="button" value="Host"/>
-                <input id="mount_btn" type="button" value="Mount"/>
+                <select id="MountDrives"></select>
+                <input id="MountButton" type="button" value="Mount"/>
+                <input id="wallet_btn" type="button" value="Wallet" />
+                <input id="host_btn" type="button" value="Host" />
             </TD>
         </TR>
         <tr width="100%" align="center" valign="top">
@@ -92,5 +93,6 @@
 <div id="host_tab" style="display: none"></div>
 
 <div id="mount_tab" style="display: none"></div>
+<script src="res:/JS/#136" type="text/javascript"></script>
 </BODY>
 </HTML>
diff --git a/SiaDrive/SiaDrive.rc b/SiaDrive/SiaDrive.rc
index 17e2280..509a6cc 100644
Binary files a/SiaDrive/SiaDrive.rc and b/SiaDrive/SiaDrive.rc differ
diff --git a/SiaDrive/SiaDrive.vcxproj b/SiaDrive/SiaDrive.vcxproj
index 67647d7..35da0f2 100644
--- a/SiaDrive/SiaDrive.vcxproj
+++ b/SiaDrive/SiaDrive.vcxproj
@@ -210,6 +210,7 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
+    <None Include="res\code.js" />
     <None Include="res\SiaDrive.rc2" />
     <None Include="SiaDrive.htm">
       <DeploymentContent>true</DeploymentContent>
diff --git a/SiaDrive/SiaDrive.vcxproj.filters b/SiaDrive/SiaDrive.vcxproj.filters
index 8903ffe..35ca4c7 100644
--- a/SiaDrive/SiaDrive.vcxproj.filters
+++ b/SiaDrive/SiaDrive.vcxproj.filters
@@ -50,6 +50,9 @@
     <None Include="res\SiaDrive.rc2">
       <Filter>Resource Files</Filter>
     </None>
+    <None Include="res\code.js">
+      <Filter>Resource Files</Filter>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="SiaDrive.rc">
diff --git a/SiaDrive/SiaDriveDlg.cpp b/SiaDrive/SiaDriveDlg.cpp
index 60d69b4..e29582b 100644
--- a/SiaDrive/SiaDriveDlg.cpp
+++ b/SiaDrive/SiaDriveDlg.cpp
@@ -61,7 +61,7 @@ BEGIN_DHTML_EVENT_MAP(CSiaDriveDlg)
 	DHTML_EVENT_ONCLICK(_T("CreateWalletButton"), OnButtonCreateWallet)
 	DHTML_EVENT_ONCLICK(_T("ConfirmSeedButton"), OnButtonConfirmSeed)
 	DHTML_EVENT_ONCLICK(_T("UnlockWalletButton"), OnButtonUnlockWallet)
-	DHTML_EVENT_ONCLICK(_T("UnlockWalletButton"), OnButtonUnlockWallet)
+	DHTML_EVENT_ONCLICK(_T("MountButton"), OnButtonMount)
 END_DHTML_EVENT_MAP()
 
 
@@ -167,6 +167,62 @@ void CSiaDriveDlg::OnPaint()
 	}
 }
 
+BOOL CSiaDriveDlg::CallClientScript(LPCTSTR pStrFuncName, CStringArray* pArrFuncArgs, CComVariant* pOutVarRes)
+{
+	BOOL bRes = FALSE;
+	CComVariant vaResult;
+	CComPtr<IHTMLDocument2> pIDoc2;
+	if (SUCCEEDED(this->GetDHtmlDocument(&pIDoc2)))  //Uses CDHtmlDialog as 'this'
+	{
+		//Getting IDispatch for Java Script objects
+		CComPtr<IDispatch> spScript;
+		if (SUCCEEDED(pIDoc2->get_Script(&spScript)))
+		{
+			//Find dispid for given function in the object
+			CComBSTR bstrMember(pStrFuncName);
+			DISPID dispid = NULL;
+			if (SUCCEEDED(spScript->GetIDsOfNames(IID_NULL, &bstrMember, 1, LOCALE_USER_DEFAULT, &dispid)))
+			{
+				COleSafeArray ar;
+				ar.CreateOneDim(VT_VARIANT, pArrFuncArgs->GetSize());
+				for (long i = 0; i < pArrFuncArgs->GetSize(); i++)
+				{
+					CComVariant v(pArrFuncArgs->GetAt(i));
+					ar.PutElement(&i, &v);
+				}
+
+				long l = 0;
+				COleSafeArray sa;
+				sa.CreateOneDim(VT_VARIANT, 1);
+				sa.PutElement(&l, ar);
+
+				//Putting parameters
+				DISPPARAMS dispparams;
+				memset(&dispparams, 0, sizeof dispparams);
+				dispparams.cArgs = 1;
+				dispparams.rgvarg = sa;
+				dispparams.cNamedArgs = 0;
+
+				EXCEPINFO excepInfo;
+				memset(&excepInfo, 0, sizeof excepInfo);
+				UINT nArgErr = (UINT)-1;  // initialize to invalid arg
+
+										  //Call JavaScript function         
+				if (SUCCEEDED(spScript->Invoke(dispid, IID_NULL, 0, DISPATCH_METHOD, &dispparams, &vaResult, &excepInfo, &nArgErr)))
+				{
+					//Done!
+					bRes = TRUE;
+				}
+			}
+		}
+	}
+
+	if (pOutVarRes)
+		*pOutVarRes = vaResult;
+
+	return bRes;
+}
+
 // The system calls this function to obtain the cursor to display while the user drags
 //  the minimized window.
 HCURSOR CSiaDriveDlg::OnQueryDragIcon()
@@ -217,6 +273,16 @@ HRESULT CSiaDriveDlg::OnButtonUnlockWallet(IHTMLElement* /*pElement*/)
 	return S_OK;
 }
 
+HRESULT CSiaDriveDlg::OnButtonMount(IHTMLElement* /*pElement*/)
+{
+	CStringArray driveList;
+	driveList.Add(L"S");
+	driveList.Add(L"T");
+	CallClientScript(L"setAvailableDrives", &driveList, nullptr);
+
+	return S_OK;
+}
+
 bool IsRefreshKeyMessage(const MSG *message)
 {
 	return message
diff --git a/SiaDrive/SiaDriveDlg.h b/SiaDrive/SiaDriveDlg.h
index 00914ff..6f5cce3 100644
--- a/SiaDrive/SiaDriveDlg.h
+++ b/SiaDrive/SiaDriveDlg.h
@@ -27,6 +27,7 @@ public:
 	HRESULT OnButtonCreateWallet(IHTMLElement* pElement);
 	HRESULT OnButtonConfirmSeed(IHTMLElement* pElement);
 	HRESULT OnButtonUnlockWallet(IHTMLElement* pElement);
+	HRESULT OnButtonMount(IHTMLElement* pElement);
 
 // Implementation
 protected:
@@ -56,6 +57,7 @@ private:
 	bool UpdateUi(const bool& refresh = true);
 	HRESULT GetDomNodeAndElementById(const String& id, CComPtr<IHTMLDOMNode>& node, CComPtr<IHTMLElement>& elem);
 	HRESULT GetDomNodeById(const String& id, CComPtr<IHTMLDOMNode>& node);
+	BOOL CallClientScript(LPCTSTR pStrFuncName, CStringArray* pArrFuncArgs, CComVariant* pOutVarRes);
 
 private:
 	CSiaDriveConfig _siaConfig;
diff --git a/SiaDrive/res/code.js b/SiaDrive/res/code.js
new file mode 100644
index 0000000..d212550
--- /dev/null
+++ b/SiaDrive/res/code.js
@@ -0,0 +1,17 @@
+
+
+function setAvailableDrives(driveList) {
+    alert(driveList[0]);
+    var sel = document.getElementById("MountDrives");
+    sel.innerHTML = "";
+
+    for (var i in driveList) {
+        if (driveList.hasOwnProperty(i)) {
+            var drive = driveList[i];
+            var option = document.createElement("option");
+            option.innerText = drive + ":";
+            sel.appendChild(option);
+        }
+    }
+}
+