Question: What's the best method to delete the first line of text from a large (10k+) group of text files.

Answer: 
If PowerShell isn't an option, you can use the `more` command:

```
more [file] +2 > [new file]

```

Stick that in a `for` loop that also then renames `[new file]` to `[file]` and you'll have the file minus the first line.

Not pretty, but should work.
download [sed for windows](http://gnuwin32.sourceforge.net/packages/sed.htm). Then do this

```
c:\test> sed -i.bak "1d" file

```

use a for loop to iterate files