I'm having the same problem, with MKS Toolkit 5.1a, which was working until I
switched to Avast 6.0.1125 earlier today. MKS Toolkit now only works if I turn
Avast OFF. The failure occurs whenever I am using any MKS command (e.g., vi, ls, pwd,
which, cp, rm, mv, rmdir, make), with the message:
MKS Toolkit for Win32 has encountered a problem and needs to close. We are sorry for the inconvenience.
It then sends information to Microsoft, listing modules such as:
vi.exe (the MKS command I was trying to execute)
ntdll.dll
kernel32.dll
snxhk.dll (this appears to be an AVAST module)
ADVAPI32.dll
RPCRT4.dll
etc., etc.
So, apparently, the problem has not been fixed yet.