Hey guy's I had a hard time trying to install Crysis warhead and Crysis wars..I finally found I had a msiexec.exe. problem and fixed it.Now I have warhead installed and it works great,but I can't get online wars to work. When I click on the short cut nothing happens if I use the Autorun found on the CD it will load the main menu but again nothing happens when I click play... I had this CD installed before and it all worked..I did a Manual removal,cleared my temp files and what not and also ended all un important back ground programs as well as shut down my fire walls before during install.Any help would be great,Thank's I have a Pentium (R) Dual-Core E5200@2.5Ghz 2.50 Ghz,3.00Gb Ram On Win XP with SP3 MB is a ASUS P5GC-MX/1333 Socket 775 DVD+R burner by LG Update!!! The msiexec.exe (windows installer) problem is back...even after updating it to the newest version "4.5" I get the same message......... The instruction at "0x76c941a9" referanced memory at "0x76c941a9" . The memory could not be "writen". Click ok to terminate... When I got Crysis warhead to install it was rite after the windows installer update was done....I tried the same thing again for the online version of the game " Crysis wars" but it still wont install properly...I can't install windows updates either.