sqldeveloper64W.exe has stopped working

Try changing the shortcut to sqldeveloper64.exe instead. This will give you the CMD window when it opens. Let's see if we get any error messages of interest there when you try to open the additional files.

Once you run SQL Developer once from there - would force us to look for a 64bit JDK, you can then just run the main sqldeveloper.exe in the main folder...

So changing the shortcut to sqldeveloper64W.exe and then rebooting seems to work UNTIL you run a previous (32-bit) version of sqldeveloper, at which point trying to open .sql files starts causing the "sqldeveloper64W.exe has stopped working" error message again. Any idea on how to fix this?

Any word on this? Is nobody else also having this problem?

I've also tried the workaround described by changing the shortcut to 'sqldeveloper64.exe' but it still crashes (Win7 x64).

A console does indeed appear but it seems it's not single instance in this case. If a double click another file in Explorer, another console opens (it's not reused).

I've tried with both the x64 file (with JDK included) and the other one "no-jre" with separate x64 JDK installed on the machine. It does not seems to make any difference.

I've also tried the new 4.0.1 version hoping that this was fixed - but still no luck.

I've tried attaching the Visual Studio Debugger to the Windows error and got some message about heap corruption, but I'm not sure if it's related to the actual cause.

It's kind of frustrating not being able to double click a sql file from Explorer.

Drag & drop also does not work until at least one worksheet is opened.

The only way to start is by CTRL+O and selecting the first file by hand.

I haven't had time to test this on a 32 bit machine.

A permanent workaround or a fix would be appreciated .

Thanks.