Error:

Saral eST3 has encountered a problem and needs to close. We are sorry for the inconvienence.

Snapshot:

Workaround 1:

Clean the .NET Framework components completely from control panel and Follow the below 10 steps:

1. Open control panel, click Add\Remove Programs and uninstall the .NET Framework.
2. Run .NET Framework cleanup Utility to clean the .NET Framework components completely.Download: .NET Framework cleanup tool
3. If it prompts for System restart then restart it
4. Navigate to Windows folder: “C:\Windows\”
5. Rename folder “assembly” to “assembly1“
6. Rename folder “Microsoft.NET” to “Microsoft.NET1“
7. Open registry: Click Start | Run | type regedit.exe | Click OK.
8. Navigate To: “HKLM\Software\Microsoft” registry
9. Delete .NETFramework key
10. Install Microsoft .Net Framework 2.0 SP1.

Workaround 2:

 [For Windows Vista or Windows 7 or Window 8]

You must use “Turn Windows features on or off” in the Control Panel to install or configure Microsoft .Net Framework 3.5 SP1″

1. Go to: start/control panel/programs and features
2. On the top left you should see “Turn windows features on or off” click on that
3. Find “Microsoft .NET framework 3.5.1″ when the window opens
4. Click the + sign next to it to expand it so you can now see:
   “Windows Communication Foundation HTTP Activation”
   “Windows Communication Foundation HTTP non-Activation”
5. Make sure there is a tick in both boxes and select OK