Hi all,

I just booted up my Samsung N120 netbook (with Windows XP Home SP3) and a dialog box came up with a command prompt window behind it. The dialog box is titled 16 bit MS-DOS Subsystem and the message is as follows:

C:\DOCUME~1\SAMSUNG\csrss.exe The NTVDM CPU has encountered an illegal instruction. CS:0544 IP:0117 OP:63 00 64 00 34 Choose 'Close' to terminate the application.

This only started on my most recent boot-up. One thing to note is that when I downloaded the Dropbox installer and opened it up, Panda Cloud Antivirus detected a suspicious file, which was csrss.exe and "neutralized it." However, an actual virus or trojan was not detected immediately before the file was detected and neutralized.

Just under two weeks ago, a trojan and two viruses were detected for some odd reason. (I only went to website I knew and I do not torrent or browse adult sites.) Anyhow, the two viruses came up in temporary files and the trojan was "neutralized."

Anyways, the main question is: How can I repair the csrss.exe file such that Windows XP starts up properly?

A screenshot could be posted upon request. Thanks in advance!