apllication failed to start

[chinnubp]

please help me. after scanning my PC for adwares, spywares using microsoft antispyware. it detected many registry keys infected. i removed spywares,, adwares in the safe mode. when i restared the computer it says that
This application has failed to start because MFC42.DLL was not found. re-installing the application may fix this problem.
i downloaded MFC42.DLL but dont know where to extract.
i tried extracting to nettransport( which also has the same error). but now if i try to open net transport it says "failed to import from dll".
iam not able to open my WEBCAM, GSPOT. same error for most of the applications



PLEASE HELP ME. THIS MAY BE OUT OF TOPIC.
thanks
chinnu

[reboot]

What operating system?
Generally, MFC42.dll is found in c:\windows\system or system32 folders.

[BJ_M]

there are different versions of MFC42.dll also - some applications install their own ...

and can screw up other applications

[chinnubp]

windows xp
iam having this application in many folders
for ex
in floder size
c:\I386 1,004 KB
c:\program files\ahead\nero 973 KB
c:\peogram files\commonfiles\... 973 KB
c:\WINDOWS\Winsxs\x86_microsoft.tools...... 973 KB
c:\I386\AMS\6000\MSFT\VCRTL 973 KB

This is the folder i extracted to
c:\programfiles\Xi\Net Transport 2 919 KB

thanks
chinnu

[BJ_M]

copy the one in c:\WINDOWS\Winsxs\x86_microsoft.tools...... 973 KB

to c:\programfiles\Xi\Net Transport

[chinnubp]

i tried copying the file. after copying also it gives the same error.
what else i can do?
thanks
chinnu