Showing results for Code - The Old New Thing

A customer reported that they were having trouble creating slim reader/writer locks at runtime. They simplified the issue to a short program: "What is the correct way of creating an via the operator?" It wasn't long before somebody noted that nowhere in the code is the function called. "Oh, yeah, thanks for catching that. It looks like ...

Benjamin Smedberg wants to know how to customize the icon used in the Taskbar for applications that are grouped, when the application is a runtime for multiple applications. (This is the other scenario I hinted at last time.) Actually, customizing the icon is only part of what you want to happen when your application is a runtime. In that case...

A customer wanted to prevent multiple copies of their program from being grouped on the taskbar. They didn't give an explanation why, but let's assume that they are doing this for honorable purposes rather than as a way to annoy the user. For example, maybe their program is really multiple applications bundled inside a single EXE file for convenie...

Crack open open the champagne: Batch File Week is finally over! Variations on the will let you repeat an operation on the contents of a directory, possibly even recursively if you add the option, with some basic attribute-level filtering if you add the or /a- flags. For your fancy recursive file operations, there's a tool called which iter...

Prepare your party hats: Batch File Week is almost over. In your batch file, you may want to exit batch file processing (say, you encountered an error and want to give up), but if you use the command, that will exit the entire command processor. Which is probably not what you intended. Batch file processing ends when execution reaches the end...

We've reached Hump Day of Batch File Week. Remember, nobody actually likes batch programming. You merely tolerate it. Today, we'll find the most recently-created item in a directory. (For example, we have a server that holds our daily builds, and you might want to write a batch file that automatically installs the latest build.) There may be b...

It's Day Two of Batch File Week. Don't worry, it'll be over in a few days. There is no obvious way to read the output of a command into a batch file variable. In unix-style shells, this is done via backquoting. The Windows command processor does not have direct backquoting, but you can fake it by abusing the command. Here's the evolution: ...

I sort of forgot to celebrate CLR Week last year, so let's say that CLR week is "on hiatus" until next year. To fill the summertime time slot, I'm going to burn off a busted pilot: This week is Batch File Week 2012. Remember, nobody actually enjoys batch programming. It's just something you have to put up with in order to get something done. Batch...

A customer reported a problem with their shell context menu extension. I have implemented the shell extension, but when the user selects my custom menu item, my is never called. Can anyone please let me know what the problem could be and how to fix it? Since there really isn't much information provided in this request, I was forced to invoke m...

Another entry in the very sporadic series of "very strange code I've seen." The code has been changed to protect the guilty, but the essence has been preserved.