I'm having the same problem and I'm also using Win7-64bit. I keep getting the following message:
"Construct2.exe - Entry Point Not Found
The procedure entry point could not be located in the dynamic link library KERNEL32.dll."
I tried re-installing R105 and it works fine, but every time I install R106 and try to run Construct 2 after the install, I get the "entry point not found" message.