[link Point to another website Only the registered members can access]
1.Open Bentley IEG License Service folder.
2.Run setup.exe[right click the " setup.exe" file and select "Run as administrator"]

3.After finishing it install the other setup file[right click the " setup.exe" file and select "Run as administrator"] present in STAAD Pro 2007 folder.
4.When installation completes Copy the "bentley.liclib.dll" file present in the ----- folder.

5.Paste it on this location "C:\Program Files\Common Files\BentleyShared\IEG\IEGLCS\".
You will get a warning about replacing file.Confirm replace.

6.After that double click the file "spro2007.reg" present in the ----- folder.You will get a message"Are you sure you want to add this file to the registry.Confirm it.

7.Now you can run the staad from desktop shortcut.

~ Or

for those on x64 systems you have to change the registry editor file (spro2007_2.reg in ----- folder). open it with notepad, do a search and replace.
search: HKEY_LOCAL_MACHINE\SOFTWARE
replace: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node