ASP.NET

<form action="doPowershell.asp" method="post">
    Network Username: <input type="textbox" name="userName"/>
    <input type="submit"/>
</form>

<%
Dim userName
userName = Request.Form("userName")
response.write(userName)

Server.Execute("activesync.ps1")
%>

(Get-CASMailbox -Identity <username>).ActiveSyncEnabled

<asp:CommandField
          ShowEditButton="True" />

    <ItemTemplate>
        <asp:CheckBox ID="ckbIsCurrentAccount" runat="server" width="30px" checked='<%#Eval("IsCurrent").ToString()%>'/>
    </ItemTemplate>
    <EditItemTemplate>
        <asp:CheckBox ID="ckbIsCurrentAccountEdit" runat="server" width="30px" Checked='<%#DataBinder.Eval(Container.DataItem, "IsCurrent") %>'/>
    </EditItemTemplate>
    <FooterTemplate>
        <asp:CheckBox ID="ckbIsCurrentAccountFooter" runat="server" width="30px" checked="true"/>
    </FooterTemplate>
</asp:TemplateField>

Quote:

System.InvalidCastException
HResult=0x80004002
Message=Unable to cast COM object of type 'System.__ComObject' to interface type 'Shell32.Shell'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{286E6F1B-7113-4355-9562-96B7E9D64C54}' failed due to the following error: No such interface supported (0x80004002 (E_NOINTERFACE)).
Source=System.Private.CoreLib
StackTrace:
at System.Runtime.CompilerServices.CastHelpers.ChkCastAny(Void* toTypeHnd, Object obj)

We have a login
If you type the username and password and press submit, we called the login.cs
everything is validate and OK,
but we have a password recovery link, where you have to type the username in order
to send you the email, in both case we called the same page: login, but we a parameter: <a href="login?expire=1" class="btn btn-ic btn-link pkg-photo">Olvide mi clave</a>
this is the function called:
if (Get<bool>("expire"))
	{
   	   if (!Empty(Username))
	   {
		ExecuteRow("sp_sopv2_EnviarCorreoClave " + Username);
   	        SuccessMessage = "Se a enviado un correo a su cuenta de email que tiene registrado con nosotros favor verificar.Una vez acceda a su cuenta debe cambiar su clave por seguridad";
  	 }
	else{
		WarningMessage = "Favor de escribir el Usuario!";
	   }
}

the problem: the username field it passed with no value, only has value if you press submit

Here de login.cshtml:

 <div class="box box-primary login-box ewLoginBox">
    <div class="login-box-body">
	<p class="login-box-msg">@Html.Raw(Language.Phrase("Login"))</p>
	<div class="form-group">
	<div><input type="text" name="username" id="username" class="form-control ewControl" value="@_login.Username" placeholder="@Language.Phrase("Username")" autocomplete="username"></div>
    </div>
    <div class="form-group">
	<div><input type="password" name="password" id="password" class="form-control ewControl" placeholder="@Language.Phrase("Password")" autocomplete="current-password"></div>
    </div>
   <div class="checkbox">
	<label for="rememberme"><input type="checkbox" name="type" id="rememberme" value="a" @Html.Raw((_login.LoginType == "a") ? " checked" : "")>@Html.Raw(Language.Phrase("RememberMe"))</label>
   </div>
	<button class="btn btn-primary btn-block ewButton" name="btnsubmit" id="btnsubmit" type="submit">@Html.Raw(Language.Phrase("Login"))</button>
	@if (Config.Authentications.Count(kvp => kvp.Value.Enabled) > 0){
    	  <div class="social-auth-links text-center">
  	     <p>@Html.Raw(Language.Phrase("LoginOr"))</p>
	     @foreach (var kvp in Config.Authentications.Where(kvp => kvp.Value.Enabled)){
  	       <a href="ExternalLogin?provider=@kvp.Key" class="btn btn-block btn-social btn-flat btn-@kvp.Key.ToLower()">class="fa fa-@kvp.Key.ToLower()">@Html.Raw(Language.Phrase("Login" + kvp.Key))</a>
	     }
	  </div>
	}
<a href="login?expire=1" class="btn btn-ic btn-link pkg-photo">Olvide mi clave</a>


Here the login.cs 
Username = ""; // Initialize  
string password = "";
if (IsLoggingIn()) { // After changing password
   Username = Session.GetString(Config.SessionUserProfileUserName);
   password = Session.GetString(Config.SessionUserProfilePassword);
   LoginType = Session.GetString(Config.SessionUserProfileLoginType);
   validPassword = Security.ValidateUser(ref Username, ref password, false);
   if (validPassword) {
	Session[Config.SessionUserProfileUserName] = "";
	Session[Config.SessionUserProfilePassword] = "";
   }
   } else { // Normal login
	if (!Security.IsLoggedIn)
	Security.AutoLogin();
	Security.LoadUserLevel(); // Load user level
	bool encrypted = false;					
	if (!Empty(Post("username"))) {
  	// Login by form post
	Username = RemoveXss(Post("username"));
	password = RemoveXss(Post("password"));
	LoginType = RemoveXss(Post("type"));
        .
        .
	.
	
	if (Get<bool>("expire"))
	{
   	   if (!Empty(Username))
	   {
		ExecuteRow("sp_sopv2_EnviarCorreoClave " + Username);
   	        SuccessMessage = "Se a enviado un correo a su cuenta de email que tiene registrado con nosotros favor verificar.Una vez acceda a su cuenta debe cambiar su clave por seguridad";
  	 }
	else{
		WarningMessage = "Favor de escribir el Usuario!";
	   }
	}



Any help.