These Help pages can be downloaded here with the Winning Bridge Shareware game for Microsoft Windows 98, ME, 2000 and XP.
If you would rather read a book, take a look at the Help Index page for some suggestions.
Standard Responding to 1 in a Suit
Points 0 - 5
Pass
Points6 - 10
If partner opened in a Major suit and with 3 cards in partner's suit bid 2 in the suit.
If partner opened in a Minor suit and with 4 cards in partner's suit bid 2 in the suit, but remember that a club opening might be artificial.
With a balanced hand and no major suit that can be bid at the one level bid 1 NT
With an unbalanced hand bid the best suit (of 4 or more cards) that you can at the 1 level
With an unbalanced hand and no support but 10 points bid your best suit at the lowest possible level
Otherwise pass
Points 11 - 16+
With 4 cards in partner's bid suit
11-12 points raise to 3 level
greater than 12 and no other possible bid: bid at the 4 level or bid game or consider a slam.
With a balanced hand
11 -12 points bid 2NT
13 - 15 points bid 3NT
16+ points bid as an unbalanced hand, expect to make game or a slam.
With an unbalanced hand
11 - 15 points bid your best suit at the two level without jumping
16+ points jump bid your best suit
Divergences
It might sometimes be acceptable to raise your partner with only 3 card support.
If you are stuck for a bid try something higher or lower than you should depending on the value of your hand.
Prefer to bid a good 4 card major suit than no trump if it does not raise the level too much.
Remember that if you bid a different suit to your partner then they should bid again (except they can pass no trumps).