Take a screenshot. This also belongs in the help section. HSUpdate.env causes the error. Try downloading another one.
Sorry i dont know how to fix your problem =/
-----OffTopic-----
This should be in Ca Help Section not in General Section.
Thats the error you get when your antivirus is blocking Combat arms hackshield
What antivirus do you use?
Right click, disable...
Or somthing smiliar
Disable anti-virus and UAC if you have it. This error can be generated by using a hack to bypass Hackshield. It can could also be a registry problem
Delete any hacks
Uninstall combat arms
Do you use an antivirus? Lol.......