Exhibit EX-99.CERT

                                 CERTIFICATIONS
                                 --------------

I, W. Douglas Beck, President of Insured Municipal Income Fund Inc., certify
that:

1.       I have reviewed this report on Form N-CSR of Insured Municipal Income
         Fund Inc.;

2.       Based on my knowledge, this report does not contain any untrue
         statement of a material fact or omit to state a material fact
         necessary to make the statements made, in light of the circumstances
         under which such statements were made, not misleading with respect to
         the period covered by this report;

3.       Based on my knowledge, the financial statements, and other financial
         information included in this report, fairly present in all material
         respects the financial condition, results of operations, changes in
         net assets, and cash flows (if the financial statements are required
         to include a statement of cash flows) of the registrant as of, and
         for, the periods presented in this report;

4.       The registrant's other certifying officer(s) and I are responsible for
         establishing and maintaining disclosure controls and procedures (as
         defined in Rule 30a-3(c) under the Investment Company Act of 1940) and
         internal control over financial reporting (as defined in Rule 30a-3(d)
         under the Investment Company Act of 1940) for the registrant and have:

              (a)  Designed such disclosure controls and procedures, or caused
                   such disclosure controls and procedures to be designed under
                   our supervision, to ensure that material information
                   relating to the registrant, including its consolidated
                   subsidiaries, is made known to us by others within those
                   entities, particularly during the period in which this
                   report is being prepared;

              (b)  Designed such internal control over financial reporting, or
                   caused such internal control over financial reporting to be
                   designed under our supervision, to provide reasonable
                   assurance regarding the reliability of financial reporting
                   and the preparation of financial statements for external
                   purposes in accordance with generally accepted accounting
                   principles;

              (c)  Evaluated the effectiveness of the registrant's disclosure
                   controls and procedures and presented in this report our
                   conclusions about the effectiveness of the disclosure
                   controls and procedures, as of a date within 90 days prior
                   to the filing date of this report based on such evaluation;
                   and

              (d)  Disclosed in this report any change in the registrant's
                   internal control over financial reporting that occurred
                   during the second fiscal quarter of the period covered by
                   this report that has materially affected, or is reasonably
                   likely to materially affect, the registrant's internal
                   control over financial reporting; and

5.       The registrant's other certifying officer(s) and I have disclosed to
         the registrant's auditors and the audit committee of the registrant's
         board of directors (or persons performing the equivalent functions):

              (a)  All significant deficiencies and material weaknesses in the
                   design or operation of internal control over financial
                   reporting which are reasonably likely to adversely affect
                   the registrant's ability to record, process, summarize, and
                   report financial information; and

              (b)  Any fraud, whether or not material, that involves management
                   or other employees who have a significant role in the
                   registrant's internal control over financial reporting.

By:      /s/ W. Douglas Beck
         -------------------
         W. Douglas Beck
         President

Date:    May 26, 2006
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I, Thomas Disbrow, Vice President and Treasurer of Insured Municipal
Income Fund Inc., certify that:

1.       I have reviewed this report on Form N-CSR of Insured Municipal Income
         Fund Inc.;

2.       Based on my knowledge, this report does not contain any untrue
         statement of a material fact or omit to state a material fact
         necessary to make the statements made, in light of the circumstances
         under which such statements were made, not misleading with respect to
         the period covered by this report;

3.       Based on my knowledge, the financial statements, and other financial
         information included in this report, fairly present in all material
         respects the financial condition, results of operations, changes in
         net assets, and cash flows (if the financial statements are required
         to include a statement of cash flows) of the registrant as of, and
         for, the periods presented in this report;

4.       The registrant's other certifying officer(s) and I are responsible for
         establishing and maintaining disclosure controls and procedures (as
         defined in Rule 30a-3(c) under the Investment Company Act of 1940) and
         internal control over financial reporting (as defined in Rule 30a-3(d)
         under the Investment Company Act of 1940) for the registrant and have:

              (a)  Designed such disclosure controls and procedures, or caused
                   such disclosure controls and procedures to be designed under
                   our supervision, to ensure that material information
                   relating to the registrant, including its consolidated
                   subsidiaries, is made known to us by others within those
                   entities, particularly during the period in which this
                   report is being prepared;

              (b)  Designed such internal control over financial reporting, or
                   caused such internal control over financial reporting to be
                   designed under our supervision, to provide reasonable
                   assurance regarding the reliability of financial reporting
                   and the preparation of financial statements for external
                   purposes in accordance with generally accepted accounting
                   principles;

              (c)  Evaluated the effectiveness of the registrant's disclosure
                   controls and procedures and presented in this report our
                   conclusions about the effectiveness of the disclosure


                   controls and procedures, as of a date within 90 days prior
                   to the filing date of this report based on such evaluation;
                   and

              (d)  Disclosed in this report any change in the registrant's
                   internal control over financial reporting that occurred
                   during the second fiscal quarter of the period covered by
                   this report that has materially affected, or is reasonably
                   likely to materially affect, the registrant's internal
                   control over financial reporting; and

5.       The registrant's other certifying officer(s) and I have disclosed to
         the registrant's auditors and the audit committee of the registrant's
         board of directors (or persons performing the equivalent functions):

              (a)  All significant deficiencies and material weaknesses in the
                   design or operation of internal control over financial
                   reporting which are reasonably likely to adversely affect
                   the registrant's ability to record, process, summarize, and
                   report financial information; and

              (b)  Any fraud, whether or not material, that involves management
                   or other employees who have a significant role in the
                   registrant's internal control over financial reporting.

By:      /s/ Thomas Disbrow
         ------------------
         Thomas Disbrow
         Vice President and Treasurer

Date:    May 26, 2006
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