Another editor, and nothing special. I just thought it finally warranted posting. I still use SciTE by preference. But on computers where AU3 is not installed (eg. at school) I have a copy of the autoit directory and this on my USB stick. The screenshot below should show what it looks like. Features: Text editor New,Open,Save Compile Run Error check Beta/Production Switch "No save" option - the file is not saved before running/ compiling/ error checking Version checker (top right) with website link Multiple "Tabs" New, Next, Previous, Close, Save Some problems I am aware of are: Empty files reading "0" on tab-change and unknown errors on opening some files. You also need SciLexer.dll to run it (not posted, but readily available.) I would be really grateful for any comments/ problems/ ideas/ improvements. Oh and btw, the files "highlighter.au3.txt", "Scintilla.h.au3" and "SciteInclude.au3" should go in the same directory as the main file. I didn't write all of it, just some, but I forget where I found the code - so if it was you then thank you! Let me know and I can put your name in somewhere. Also, the "windows" in the filename doesn't refer to the OS. It's my way of differentiating versions. The source is long which is why I haven't posted it. (But it is included in the zip) Editor.zip