Hi wahnsinn,
No problem of the delay in getting back. I get a notification and am happy to take it up when you're available.
However, I admit to be there being some confusion as to what you require. SO I will give you a lot of information and a few guesses here in an effort to hit the right spot!
Batch (CMD) Scripting
If you already have a batch file that imports a registry entry. Just add
this as your logon script in gpedit. To answer your question, as far as I am aware 'Yes' windows accepts batch files (if you check in the adding s startup script area you'll see that the file type is "all file types"). You can easily verify this by adding your batch file, rebooting and letting us know. If this doesn't work then task scheduler would be the best move forward. When you set this up via gpedit, ensure that SYSTEM has read permissions on the file and don;t store the batch file in thes directory as this will make windows prompt for admin rights to run it.
If you wish to run a *.reg file from inside a batch, or even create the regfile during the batch file running, then we need to consider checking the registry and file permissions first, which is no big problem, but let me know and we'll take it from there.
Powershell (PS) and Visual Basic (VB) Scripting [VBS]
If you are wishing to learn another scripting language (such as VB or PS) then please say exactly that, post your batch file up so that I can see what it does (feel free to PM me if it's a file that you want to keep private) and we can talk about the next steps. However using powershell or VB is neither more or less elegant than a command script (for most functions).
Lastly, if we're not on the same page yet

, please break it down to baby steps. Here's an example, feel free to edit it or write your own.
Enviroment
1. I have this script xxxxxx
2. It works in XP when added to the start menu folder
3. I am using this script in Windows 7 Ultimate 64bit and Windows 7 HP 32bit
Job Scope
I would like the script to work in the above environment with the following requirements:
1. Low installation time
2. work Automatically
3. Low maintenance
Questions
1. Is this possible?
2. Is there another method (a better method?) that I can use to configure this scenario?
-Timo