SCHEDULE 14A INFORMATION

 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934
                               (Amendment No. __)

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        Delaware Investments Colorado Insured Municipal Income Fund, Inc.
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                (Name of Registrant as Specified In Its Charter)


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    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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                                Denise Franchetti
                           Delaware Management Company
                               One Commerce Square
                             Philadelphia, PA 19103
                                 [PHONE NUMBER]
                                     [DATE]

[SHAREHOLDER ADDRESS]


Re:  Delaware Investments Colorado Insured Municipal Income Fund, Inc.

Dear [SHAREHOLDER]:

As you know, several officers of the Fund have been trying to reach you. We need
all preferred  shareholders  (including  those who have disposed of their shares
since the record  date) to vote their shares in order to permit the Fund to make
certain changes in its investment policies.

I am sure you understand the need to adapt to changing market conditions.  It is
in pursuit of the best possible return for all shareholders that I and my fellow
portfolio  managers on your Fund  recommended  that you approve  changes to your
Fund's  investment  strategy as described in the proxy  statement  dated July 2,
2007. As discussed in more detail below,  these proposed changes will not change
the rating on your preferred shares of the Fund.

The Fund's common shares have voted  overwhelmingly for these changes.  However,
as it now stands,  these  progressive  proposals will be defeated because of the
lack of votes by the  preferred  shares.  If that  happens,  the  Fund's  common
shareholders  will be unable to benefit from these  proposals.  That is why I am
asking you to vote in favor of this proposal.

I think it is important to stress that these  proposed  changes will allow us to
continue to offer competitive yields on the preferred shares,  while at the same
time  maintaining  the shares' AAA credit rating.  Standard & Poor's and Moody's
Investors Service,  Inc. have both reviewed pro forma portfolios  reflecting the
proposed  changes and have confirmed that the proposed  changes would not impact
the rating on the preferred shares.

We strongly urge you to vote in favor of the  proposal.  If you have any further
questions on the effects of these  proposed  changes,  please do not hesitate to
call me at the above number.

I thank you for your consideration and support and would welcome the opportunity
to speak with you.

                                  Very truly yours,

                                  s/ Denise Franchetti

                                  Denise Franchetti
                      Vice President, Portfolio Manager & Senior Credit Analyst