با عرض سلام
من با این کد به نتیجه رسیدم برای iis7 در هاست "مارال هاست"
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<connectionStrings>
<add name="ConnectionString1" connectionString="Server=;Database=DATABASE_NAME;U id=USER_ID;Password=PASSWORD"
providerName="System.Data.SqlClient" />
</connectionStrings>
<system.web>
<globalization fileEncoding="utf-8" responseEncoding="utf-8" />
<httpHandlers>
<add verb="GET" path="CaptchaImage.aspx" type="Safa.Security.Captcha.SafaCaptchaImageHandle r, SafaCaptchaControl"/>
</httpHandlers>
<customErrors mode="Off"/>
<compilation debug="true"/>
</system.web>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
<validation validateIntegratedModeConfiguration="false"/>
<handlers>
<add name="FakhravaryCaptchaImageHandler" verb="*" preCondition="integratedMode" path="CaptchaImage.aspx" type="Safa.Security.Captcha.SafaCaptchaImageHandle r" />
</handlers>
<defaultDocument>
<files>
<clear />
<add value="Default.aspx" />
</files>
</defaultDocument>
</system.webServer>
</configuration>