When we try to open any application it will ask for open with window and giving the error �c:\windows\system32\rundll32.exe�application not found

Problem  When we try to open any application it will ask for open with window and giving the error �c:\windows\system32\rundll32.exe�application not found .If we try to open any application, same error is coming. Mainly executable files are not working such as cmd.exe, msconfig.exe.


 Solution
1. Go to command prompt by giving Start 􀃆Run􀃆Command (Because cmd will not work )

 2. Give command c:\>ftype exefile=�%1� %* and enter.

 3. It will display the same in next line ,Now it is set

 4. After executing this command, your problem will be solved and all the exe files will be getting opened without any problem.

 5. That rundll32.exe error also disappeared The above command will be resetting the following registry keys HKEY_CLASSES_ROOT\exefile\shell\open\command HKEY_CLASSES_ROOT\exefile\shell\runas\command