Hello Hari
I too faced the same problem
For me issue with msvcr100 .dll is missing
after that i have started with DSUGUI.bat
○<update directory>\sdt\lib
○<update directory>\sdt\exe\DSUGui.bat
Start the GUI in a command prompt with the command DSUGui.bat.
it worked for me.Hope works for u too.
Thanks
jahangeer