.loadby sos mscorwks
Unable to find module 'mscorwks'
for .NET framework 4+ use
.loadby sos clr
SOS does not support the current target architecture.
I see this exception when I run multiple commands because dump was created on 64 bit arch for 32 bit process (I still recommend taking dump using 32 bit Task Manager that is located under C:\Windows\SysWOW64).
!wow64exts.swHelps to run some commands like