OPEN SOLUTIONS INC S-1

S-1

OPEN SOLUTIONS INC.

EX-1

FORM OF UNDERWRITING AGREEMENT

EX-3.1

CERIFICATE OF INCORPORATION

EX-3.2

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

EX-3.3

BY-LAWS

EX-3.4

AMENDED AND RESTATED BY-LAWS

EX-10.1

1994 STOCK OPTION PLAN

EX-10.3

1998 EMPLOYEE STOCK PURCHASE PLAN

EX-10.4

AMENDED AND RESTATED INVESTORS' RIGHT AGREEMENT

EX-10.5

FORM OF WARRANT

EX-10.6

FORM OF WARRANT (SERIES C)

EX-10.7

FORM OF WARRANT (SERIES D)

EX-10.9

SOFTWARE LICENSE & MARKETING & DISTRIBUTION AGREE.

EX-10.10

LICENSE AND MARKETING AGREEMENT (12/09/97)

EX-10.11

SOFTWARE LICENSE AGREEMENT

EX-10.14

LETTER AGREEMENT (J.L. PERSON)

EX-10.15

LETTER AGREEMENT (R.J. WILLEMIN)

EX-10.16

INFORMATION PROCESSING SYSTEM AGREEMENT

EX-10.17

(PRIOR) INFORMATION PROCESSING SYSTEM AGREEMENT

EX-23.1

CONSENT OF PROCE WATERHOUSE

EX-27.1

FINANCIAL DATA SCHEDULE

EX-27.2

FINANCIAL DATA SCHEDULE