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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000950136-06-010220
Filing Date
2006-12-12
Accepted
2006-12-12 17:08:48
Documents
3
Effectiveness Date
2006-12-12

Document Format Files

Seq Description Document Type Size
1 file1.htm DEFA14A 24644
2 spacer.gif GRAPHIC 43
3 html_morganstanley.jpg GRAPHIC 5364
  Complete submission text file 0000950136-06-010220.txt   36434

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000351898      
Series S000004040   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
Class/Contract C000011325   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST aagxx
  Status Name Ticker Symbol
CIK 0000356409      
Series S000004054   MORGAN STANLEY US GOVERNMENT MONEY MARKET TRUST
Class/Contract C000011343   MORGAN STANLEY US GOVERNMENT MONEY MARKET TRUST sgmt
  Status Name Ticker Symbol
CIK 0001165382      
Series S000004041   ACTIVE ASSETS INSTITUTIONAL GOVERNMENT SECURITIES TRUST
Class/Contract C000011326   ACTIVE ASSETS INSTITUTIONAL GOVERNMENT SECURITIES TRUST aisxx
Mailing Address 1221 AVE OF THE AMERICAS 22ND FLOOR NEW YORK NY 10020
Business Address C/O MORGAN STANLEY TRUST HARBORSIDE FINANCIAL CENTER, PLAZA TWO JERSEY CITY NJ 07311 212 762 4647
ACTIVE ASSETS GOVERNMENT SECURITIES TRUST (Filer) CIK: 0000351898 (see all company filings)

IRS No.: 133075004 | State of Incorp.: MA | Fiscal Year End: 0630
Type: DEFA14A | Act: 34 | File No.: 811-03165 | Film No.: 061272257

Mailing Address C/O MORGAN STANLEY TRUST HARBORSIDE FINANCIAL CENTER, PLAZA TWO JERSEY CITY NJ 07311
Business Address C/O MORGAN STANLEY TRUST HARBORSIDE FINANCIAL CENTER, PLAZA TWO JERSEY CITY NJ 07311 (212) 869-6397
MORGAN STANLEY US GOVERNMENT MONEY MARKET TRUST (Filer) CIK: 0000356409 (see all company filings)

IRS No.: 133112032 | State of Incorp.: MA | Fiscal Year End: 0131
Type: DEFA14A | Act: 34 | File No.: 811-03326 | Film No.: 061272258

Mailing Address HARBORSIDE FINANCIAL CENTER PLAZA TWO JERSEY CITY NJ 07311
Business Address HARBORSIDE FINANCIAL CENTER PLAZA TWO JERSEY CITY NJ 07311 8008696397
ACTIVE ASSETS INSTITUTIONAL GOVERNMENT SECURITIES TRUST (Filer) CIK: 0001165382 (see all company filings)

IRS No.: 000000000
Type: DEFA14A | Act: 34 | File No.: 811-21024 | Film No.: 061272260