How to configure the validation code value?
1. Find your " web.config " file. It should be under the ESWeb folder. The path should be like.. \< your ESWeb installed catalog>\ESWeb..

2. Open the " web.config " and find the sentence <add key="verifyCodeAtLogin" value=" 1,4,1,0 "/> as below:

Notes:
The description of < value=", , , "> is below
| value="1,x,x,x" | It is about if you want to design the Validation code for login. 0--no,1--yes |
| value="x,4,x,x" | The number of validation code: It is available from 2 to 8. default one is 4 |
| value="x,x,1,x" | It is about how to print the validation code. Normally, number and letter can be used in the code. There are three mode: 1-- number only; 2--letter only;3-mix letter and number; |
| value="x,x,x,0" | It is about Caps lock sensitive. 0-indiscriminating 1-discriminating |