<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
MSDW Insured Municipal Securities
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-END> APR-30-2000
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<TOTAL-LIABILITIES> (129,947)
<SENIOR-EQUITY> 0
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<SHARES-COMMON-STOCK> 8,354,813
<SHARES-COMMON-PRIOR> 8,650,213
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<OVERDISTRIBUTION-NII> 0
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<OVERDISTRIBUTION-GAINS> 0
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<NET-CHANGE-IN-ASSETS> (3,430,041)
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</TABLE>
