I have been having trouble with AVG since it was attacked by the scagent.exe virus. Only eradicating my old version of AVG restored normality on my computer (see earlier forum entry). Now I can't reinstall AVG-6 (free edition) as when the exe. is started I get this message: "c:\windows\system32\autoexec.nt. The system file is not suitable for running ms-dos or ms windows applications. choose 'Close' to terminate this application". In fact this message is now popping up on other installs too. Anybody know what this may be all about??? gazza

Config.nt The system file is not suitable for running MS-DOS and Microsoft Windows Applications. CAUSE The symptoms above may occur for one or more of the following reasons: * One or all of the following files are corrupt or missing from the %Systemroot\System32 folder: Autoexec.nt Config.nt Command.com * Windows NT is installed on a removable drive such as Bernoulli, IOMEGA, or SyQuest drive. * You attempt to install another version of Windows NT on a removable drive. * Pagefile.sys resides on a removable drive. RESOLUTION To correct this problem, perform one or more of the following: * Run the emergency repair disk (ERD) to replace the missing or corrupt file(s). The ERD also verifies the integrity of Windows NT system files in general. * Manually expand the Autoexec.nt, Config.nt, and Command.com files off the Windows NT CD-ROM. * Move the paging file to a permanent physical drive.

Thankyou very much for your help EC. All fixed now - autoexec.nt was missing out of System32, residing as it was in the Windows\Repair folder. I copied it over to the System32 folder and walla! There is also a duplicate copy of config.nt in the repair folder too, although I didn't need to copy this over the one in System32 to get the install working. What is the purpose of the "repair" folder -apart from the obvious? How did the files get in there? gp