ntvdm.exe has generated errors

Hi Folks,

While i try to install Winrunner 7.0(A testing tool) i got an error message “ntvdm.exe has generated errors and will be closed by windows”. This happened after i scanned my hard disk with Solo Antivirus. actually it detected some trojan horses and malicious scripts, and advised me to delete the affected files. so i did. Pls help me to fix this problem.

Thank You