<PAGE> PAGE 1
000 B000000 07/31/2000
000 C000000 001052136
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 VAN KAMPEN SENIOR FLOATING RATE FUND
001 B000000 811-08589
001 C000000 6306846000
002 A000000 1 PARKVIEW PLAZA
002 B000000 OAKBROOK TERRACE
002 C000000 IL
002 D010000 60181
002 D020000 5555
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A000001 VAN KAMPEN INVESTMENT ADVISORY CORP.
008 B000001 A
008 C000001 801-18161
008 D010001 OAKBROOK TERRACE
008 D020001 IL
008 D030001 60181
008 D040001 5555
010 A000001 VAN KAMPEN FUNDS INC.
010 B000001 8-19412
010 C010001 OAKBROOK TERRACE
010 C020001 IL
010 C030001 60181
011 A000001 PRUDENTIAL BACHE SECURITIES INC.
011 B000001 8-27154
011 C010001 OAKBROOK TERACE
011 C020001 IL
011 C030001 60181
011 C040001 5555
<PAGE> PAGE 2
012 A000001 VAN KAMPEN INVESTOR SERVICES INC.
012 B000001 84-01621
012 C010001 KANSAS CITY
012 C020001 MO
012 C030001 64121
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 CHICAGO
013 B020001 IL
013 B030001 60601
014 A000001 MORGAN STANLEY & CO., INCORPORATED
014 B000001 8-733537
014 A000002 DEAN WITTER REYNOLDS, INC.
014 B000002 8-728181
015 A000001 STATE STREET BANK AND TRUST CO.
015 B000001 C
015 C010001 BOSTON
015 C020001 MA
015 C030001 02105
015 E010001 X
018 000000 Y
019 A000000 Y
019 B000000 118
019 C000000 VANKAMPENF
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 BA SECURITIES
022 B000001 95-4035346
022 C000001 3320847
022 D000001 46425
022 A000002 CHASE MANHATTAN
022 B000002 13-2633612
022 C000002 1912187
022 D000002 102457
022 A000003 MERRILL LYNCH
022 B000003 13-5674085
022 C000003 1276854
022 D000003 0
022 A000004 STATE STREET BANK AND TRUST
022 B000004 04-1867445
022 C000004 1268231
022 D000004 0
022 A000005 SALOMON SMITH BANRNEY
<PAGE> PAGE 3
022 B000005 11-2418191
022 C000005 1115871
022 D000005 0
022 A000006 DEUTSCHE BANK AG
022 B000006 13-2944988
022 C000006 390639
022 D000006 0
022 A000007 CREDIT SUISSE
022 B000007 13-5659485
022 C000007 262485
022 D000007 20000
022 A000008 LEHMAN COMMERCIAL
022 B000008 13-2518466
022 C000008 106646
022 D000008 26000
022 A000009 TORONTO DOMINION
022 B000009 13-6066548
022 C000009 49500
022 D000009 65000
022 A000010 MORGAN STANLEY
022 B000010 13-2655998
022 C000010 111528
022 D000010 0
023 C000000 16683666
023 D000000 346758
024 000000 N
025 D000001 0
025 D000002 0
025 D000003 0
025 D000004 0
025 D000005 0
025 D000006 0
025 D000007 0
025 D000008 0
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 N
028 A010000 0
028 A020000 0
028 A030000 0
028 A040000 0
028 B010000 0
028 B020000 0
028 B030000 0
<PAGE> PAGE 4
028 B040000 0
028 C010000 0
028 C020000 0
028 C030000 0
028 C040000 0
028 D010000 0
028 D020000 0
028 D030000 0
028 D040000 0
028 E010000 0
028 E020000 0
028 E030000 0
028 E040000 0
028 F010000 0
028 F020000 0
028 F030000 0
028 F040000 0
028 G010000 0
028 G020000 0
028 G030000 0
028 G040000 0
028 H000000 0
030 A000000 0
030 B000000 0.00
030 C000000 0.00
031 A000000 0
031 B000000 0
032 000000 0
033 000000 0
035 000000 0
036 B000000 0
038 000000 0
042 A000000 0
042 B000000 0
042 C000000 0
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
043 000000 0
044 000000 0
045 000000 Y
046 000000 N
047 000000 Y
048 000000 0.000
048 A010000 4000000
048 A020000 0.950
048 B010000 3500000
048 B020000 0.900
048 C010000 2500000
<PAGE> PAGE 5
048 C020000 0.875
048 D010000 0
048 D020000 0.000
048 E010000 0
048 E020000 0.000
048 F010000 0
048 F020000 0.000
048 G010000 0
048 G020000 0.000
048 H010000 0
048 H020000 0.000
048 I010000 0
048 I020000 0.000
048 J010000 0
048 J020000 0.000
048 K010000 10000000
048 K020000 0.850
049 000000 N
050 000000 N
051 000000 N
052 000000 N
053 A000000 N
054 A000000 Y
054 B000000 N
054 C000000 N
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 N
054 M000000 Y
054 N000000 N
054 O000000 N
055 A000000 Y
055 B000000 N
056 000000 N
057 000000 N
058 A000000 N
059 000000 Y
060 A000000 N
060 B000000 N
061 000000 1000
062 A000000 Y
062 B000000 0.0
062 C000000 0.0
062 D000000 0.0
062 E000000 0.0
<PAGE> PAGE 6
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 5.4
062 J000000 0.0
062 K000000 0.0
062 L000000 0.0
062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
062 P000000 0.0
062 Q000000 94.1
062 R000000 0.0
063 A000000 0
063 B000000 5.7
064 A000000 N
064 B000000 N
066 A000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 Y
070 A020000 N
070 B010000 N
070 B020000 N
070 C010000 N
070 C020000 N
070 D010000 N
070 D020000 N
070 E010000 N
070 E020000 N
070 F010000 N
070 F020000 N
070 G010000 N
070 G020000 N
070 H010000 N
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
070 J020000 N
070 K010000 N
070 K020000 N
070 L010000 N
070 L020000 N
070 M010000 Y
070 M020000 N
070 N010000 Y
070 N020000 N
070 O010000 N
<PAGE> PAGE 7
070 O020000 N
070 P010000 N
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000 1004256
071 B000000 702218
071 C000000 1308028
071 D000000 54
072 A000000 12
072 B000000 140920
072 C000000 0
072 D000000 0
072 E000000 2111
072 F000000 15074
072 G000000 3967
072 H000000 0
072 I000000 1160
072 J000000 675
072 K000000 0
072 L000000 265
072 M000000 77
072 N000000 518
072 O000000 0
072 P000000 0
072 Q000000 0
072 R000000 96
072 S000000 623
072 T000000 0
072 U000000 102
072 V000000 0
072 W000000 3502
072 X000000 26059
072 Y000000 0
072 Z000000 116972
072AA000000 3089
072BB000000 0
072CC010000 0
072CC020000 84185
072DD010000 116808
072DD020000 0
072EE000000 1077
073 A010000 0.7200
073 A020000 0.0000
073 B000000 0.0100
073 C000000 0.0000
074 A000000 0
074 B000000 0
074 C000000 78163
<PAGE> PAGE 8
074 D000000 0
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 1371469
074 J000000 0
074 K000000 0
074 L000000 13710
074 M000000 550
074 N000000 1463892
074 O000000 0
074 P000000 1951
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 4332
074 S000000 0
074 T000000 1457609
074 U010000 152178
074 U020000 0
074 V010000 9.58
074 V020000 0.00
074 W000000 0.0000
074 X000000 39705
074 Y000000 0
075 A000000 0
075 B000000 1587053
076 000000 0.00
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 Y
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 N
077 Q020000 N
077 Q030000 N
078 000000 N
080 A000000 ICI MUTUAL INSURANCE COMPANY
<PAGE> PAGE 9
080 C000000 85000
081 A000000 Y
081 B000000 117
082 A000000 Y
082 B000000 100
083 A000000 N
083 B000000 0
084 A000000 N
084 B000000 0
085 A000000 Y
085 B000000 N
086 A010000 57196
086 A020000 568094
086 B010000 59221
086 B020000 581641
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 N
SIGNATURE MICHAEL COYNE
TITLE ASSISTANT TREASURER