To create a password without non-alphanumeric characters in asp.net add following code into web.config file. <membership> <providers> <remove name=”AspNetSqlMembershipProvider” /> <add name=”AspNetSqlMembershipProvider” type=”System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a” connectionStringName=”AspNetDBConnection” enablePasswordRetrieval=”false” enablePasswordReset=”true” requiresQuestionAndAnswer=”true” applicationName=”/” requiresUniqueEmail=”false” minRequiredPasswordLength=”1″ minRequiredNonalphanumericCharacters=”0″ passwordFormat=”Hashed” maxInvalidPasswordAttempts=”5″ passwordAttemptWindow=”10″ passwordStrengthRegularExpression=”” /> </providers> </membership> Here, connectionStringName=”LocalSqlServer” – name of your ConnectionString (you’ll probably have to replace this … Continue reading