-- Now you can sign your E-Return digitally using a digital certificate.
-- In case of problem in using Digital signature, please download the Capicom.dll file.

a. Download the Capicom.dll file.

b. Un-Register old Capicom.dll using Start ->Run -> Type regsvr32 capicom.dll -u

c. Copy downloaded Capicom.dll into c:\windows\system32 folder.

d. Register this dll using start->Run->

e. Type regsvr32 c:\windows\system32\capicom.dll


For Windows 7/Windows 8
How to Install capicom.dll for Windows XP/ Windows7-32bit/ Windows7-64bit
 
1. Download for Windows XP
2. Download for Windows 7-32 Bit
3.Download for Windows 7- 64 Bit
 
1. Download the respective folder as per requirement of Operating System
Procedure to install capicom.dll for Windows XP

1. Extract the folder to your desktop and copy "capicom.dll" to your system folder i.e C:\Windows\System32.
2.Execute batch file  "WindowsXP" from the extracted folder to register capicom.dll with Operating System.
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Procedure to install capicom.dll for Windows 7-32 Bit

1. Extract the folder to your desktop and copy "capicom.dll" and "Interop.CAPICOM.dll" to your system folder i.e C:\Windows\System32.
2.Execute batch file  "Windows7-32bit"  as administrator (right click and select run as administrator) from the extracted folder to register "capicom.dll" with Operating System.

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rocedure to install capicom.dll for Windows 7-64 Bit

1. Extract the folder to your desktop and copy "capicom.dll" and "Interop.CAPICOM.dll" to your system folder i.e C:\Windows\SysWOW64
2.Execute batch file  "Windows7-64bit"  as administrator (right click and select run as administrator) from the extracted folder to register "capicom.dll" with Operating System.

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Please ensure in your internet explorer popup bloker is off(as shown in the attached jpg)