1 First backup your GTAIV.exe or EFLC.exe because we are going to hex edit it and you can try again or just restore it if you screw up
2 Download a hex editor ,preferably XVI32 (Link- http://www.chmaas.handshake.de/delphi/freeware/xvi32/xvi32.htm ) I am going use XVI32
3 Open XVI32 and click on 'File then click on 'Open' ,Browse to GTA IV /EFLC root folder and open GTAIV.exe /EFLC.exe

4 Now press CTRL+F and search for 'd3d9.dll' (Type it in exactly it ) ,Now change it to d3fx.dll(click on the 'd' then type ' d3fx.dll ' )
there will be one more instance so repeat the above steps once again

5 After that click on 'File' then click 'save'

6 Then you can install iCEnhancer (If already done skip to step 7)

7Just rename the d3d9.dll in GTA IV rpot folder to d3fx.dll

8 Start the game and enjoy

Read more: http://icenhancer.proboards.com/index.cgi?board=help&action=display&thread=635#ixzz2J5KBrXl2
