Originally Posted by Zorlon
If VBA isn't set up right it will seem like it doesn't work with some of the pokemongames also the roms must either be in *.zip format or uncompressed *.gba format, for *.exe's just extract them with winrar or another extraction program (self extracting exe's can have spyware in them but extracting those by using an extraction program like WinRAR will avoid them from installing unwanted spyware)
In VBA make sure the Real Time Clock option is enabled for the Pokemon games
You can also use vba-over that I attached (just extract it to the same folder as vba - don't use previous save states though)
what vba-over does is apply the correct battery settings for some of the games that don't work with default settings, though my version may need updating but I know I covered a few Pokemon games in it