C:\Users\ashetty\Desktop>riverbench.exe
Can't find a usable init.tcl in the following directories:
    C:/Users/ashetty/AppData/Local/Temp/par-ashetty/lib/tcl8.5 C:/Users/ashetty/
AppData/Local/Temp/par-ashetty/lib/tcl8.5 C:/Users/ashetty/AppData/Local/Temp/li
b/tcl8.5 C:/Users/ashetty/AppData/Local/Temp/par-ashetty/library C:/Users/ashett
y/AppData/Local/Temp/library C:/Users/ashetty/AppData/Local/Temp/tcl8.5.10/libra
ry C:/Users/ashetty/AppData/Local/tcl8.5.10/library

This probably means that Tcl wasn't installed properly.
BEGIN failed--compilation aborted at Tkx.pm line 225.
Compilation failed in require at script/benchtool.pl line 39.
BEGIN failed--compilation aborted at script/benchtool.pl line 39.