TCC/LE 64-bit builds are compiled with large address support disabled. This causes it to crash when opened from within alternative consoles such as ConsoleZ, as you can see in the bug report I filled there. Fixing this locally is simple. It's just a matter of typing this in an elevated cmd prompt after TCC/LE 64-bit is installed and presto, it now works from within alternative consoles: Code: C:\>"c:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\editbin.exe" /LARGEADDRESSAWARE "c:\Program Files\JPSoft\TCCLE14x64\tcc.exe" But it'd be nice if the tcc.exe in the installer came with the /LARGEADDRESSAWARE flag already set. So, can you perhaps make a new build with this one change implemented? It'd really simplify getting TCC/LE to run well everywhere! Thank you!