Open with/ Not a valid Win 32 application?

Received a trojan on the computer in which whenever i open software it pulls up the “open with” checklist Cant get any anti-virus software given it tells me its not only a valid Acquire 23 software, Cant employ system restore because it is not located,
Managing windows xp

Run the following:

http://download.bleepingcomputer.com/reg/FixExe.reg

What on earth is FixEXE.reg

http://www.bleepingcomputer.com/forums/topic299050.html

http://www.dougknox.com/xp/file_assoc.htm

Visit here and download the zip relationship fix primary.Follow this instructions to operate it.

Then download the exe relationship fix and also unzip this and run it identical way.

In that case reboot.

Read this particular article and mouse click on Fix Reg.exe….download it in your desktop…..shut the visitor…open this up along with run….all are going to be back to normal…………..

http://filext.com/faq/broken_exe_association.php.