f# interactive won't tab complete in VS2010

I'm not sure what I'm doing wrong here (I'm new to both F# and VS) but I can't get the tab completion to work in F# Interactive.

• I have --readline enabled in Tools -> Options开发者_JAVA百科 -> F# Tools -> F# Interactive
• fsi.exe --readline from cmd does work

I'm on Win7 professional and I'm running a trial version of Visual Studio 2010 Professional. Any ideas?

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VS F# Interactive Shell is just a normal text editor which enables us to write input to fsi.exe and display the output of it. Being a text editor, it will handles tab key like others do. You are not doing wrong. The feature is not just there.