Mcafee Suspicious script stopped

Hi, I recently went to the Microsoft update web page to get the latest updates and I installed the security center updates and the malware removal updates but the microsoft.net framework 3.5 sp1 update gets haulted by my Mcafee anti virus and give me this message:

"The file msiecec.exe contains suspicious scripting activity
The script is attempting to call the create text file method within the ifilesystem3 object"

and everytime it comes up I stop it. This is the first time Ive had this problem and am not sure if I should allow it or not. I mean all i did was try to get my updates and ever one of them went except this. Any help. Thanks

-Windows Xp media center.

 

Thanks