Last night, I downloaded WinRAR Unplugged, which is a portable version of WinRAR that's not on the PA site. Now, I really wanted it on the PortableApps Suite (it just makes life easier) so I figured out how to get this, or any portable program, to appear in that window.
First, you need to go into your flash drive using My Computer- out of the PortableApps Suite. Then, create a folder in the main removable drive called "Background Programs" (or whatever you feel like naming it). Then, create a sub-folder called "EnterTheAppsNameHere Portable". Now, install- or copy/paste all of the files- into the subfolder.
Now this is where it gets tricky. Go into your Portable Apps Suite Folder. For me it was E:\PortableApps. Now create a new folder, something like "AppNameHere Portable", so if you were using WinRAR, it would be "WinRAR Portable". Leave this file empty for now. Go back to your desktop, and create a new text document by right-clicking on your desktop, going to new, and pressing "New Text Document", and type in the following:
Start NameOfTheExecutable.exe -source "WhereTheFileIs"
So, for me, I typed:
Start winRAR.exe -source "E:\Background Programs\winrar Portable\"
Now, go to File > Save as, and save it to a location that's easy to fine, and name it "WinRAR Portable.bat", with the quotes. To make sure that everything went well, double click on the file that you just created. It should bring up winRAR.
Download a free .bat to .exe program at http://www.download.com/3000-2069_4-10715331.htm. Run this program, and you should see a gray box that pops up. In the first field "Batchfile", click on the ... to the right of the text field and select the .bat file you created. Ignore the Include box, and go to the one under it- the Iconfile box.
This box is here if you want to select the WinRAR icon (it will be displayed in your PortableApps menu) to go with it. Now, although this is not necessary, it makes it look a bit more professional, so I'll show you how to do it.
Download the icon from http://files.filefront.com/WINRARICO/;5484621;/fileinfo.html, and place it on your desktop. Go to the Bat to EXE program you were just in, and go to the Iconfile box. Click on the ... button, and find the icon file you just downloaded. Select it, and press "Ok". You don't need to do anything with the Save As box- it should already have something in it.
Now hit "Compile" at the bottom of the screen. You should now see a .exe named WinRAR Portable on your desktop. Go into your flash drive using My Computer, and double click on "PortableApps". You remember the folder you made earlier? Go to it, and copy the WinRAR Portable.exe you made with the compiler into it.
Restart the PortableApps Suite tray, and it's there!
I know these instructions were long and complicated, but it's all there, I think. I'm really sorry if this was already posted, in the wrong forum, or if everyone knows this and I'm just behind the times. Hope this helps!