So, let's get started!
Step 1: Open Notepad
Just open your start menu and then all programs, then accessories, then notepad.
Or, start menu, run, then type in notepad.
Step 2: Writing the Batch File.
(If you don't want it to show up, type "echo off" at the top of notepad. Though it may flash, it won't stay on for long.)
Ok, so what we do first is type in "start /d" (Without the quotes). Then make sure there is a space between the "start" and the "/d". Then find the first program you want the batch file to open, right click on it, then click properties, then find where it says location (or if it's a shortcut, find target) and copy the location in the bar. Now go back to notepad, then put a quotation mark (") and paste in the location. Now, if it just has the folder, but not the program or file, you need to type in the name of the program. So for example, ("C:\Documents and Settings\User\Desktop\Test.bat"). Now with some computers, it will need to be written like this: ("C:\Documents and Settings\User\Desktop" Test.bat). Another important note, if the file name has a space in it, for example (Test Batch.bat) you have to put quotes around it. You'll just have to play around with it and see which way works.
Alright, now repeat the above paragraph with all the programs you want the batch file to open included.
Step 3: Saving the Batch.
Once you finish writing the batch file, on the top-right, click "File", then "Save as...". Now type in the name you want it to be, and make sure it has .bat at the end of it. For example, (Test.bat).
Now, test it out! Double click on it and see if it opens up the programs you wanted it to. If it doesn't try changing it form something like ("C:\Documents and Settings\User\Desktop\Image.gif") to something like ("C:\Documents and Settings\User\Desktop" Image.gif).
You may have to fool around with it a bit.
Step 4: Shortcuts and Hot Keys (Optional)
You can also hide the actual batch file in My Documents or on the C: and make a shortcut to it on your desktop. Once you make the shortcut, you can change the icon!
All computers have a different way of setting a hot key, it may have a button next to the hot key, it could have an icon on the taskbar, etc.
To change the icon if you make a shortcut, just right click on the shortcut and select properties then change icon.
Step 5: You're Done!
I hope this was useful to you! =D