I’ve recently started doing some work with Windows PowerShell. One problem I wanted to solve was placing my scripts in source control and having them in a non-standard folder. Below is a bit of code you can put in your Microsoft.PowerShell_profile.ps1 file to look for all .ps1 files in a given directory. Just be sure to change the folder in the code below to your PowerShell code folder and all will be good.
https://gist.github.com/ericjuden/8678297