if i want to have multiple wallets, is it enough if i remove the bitcoin folder in appdata/roaming (and keep it in zip file) every time or do i need a new bitcoin program folder for each wallet as well?
oh and, does bitcoin store data anywhere else? (besides temporary folders)
Each wallet.dat file represent a wallets。
Each wallet.dat consist of private keys for addresses and can be used to spend the coins. Wallet.dat has 100 pregenerated addresses and backups should be done often.