I am getting the error message above from a Windows 2003 server. We just added a few 2008 server to our domain and thats when I started noticing this error. When I close AD shortcut from my exchange server and start again I can work but after a while the error comes back. Any ideas?

Any related errors in the event viewer? Check both AD servers and the Exchange Also, run ExBPA and check for issues/warningsJonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

I'm getting this exact same problem and with similar setup... any help would be greatly appreciated! The following appears in the event viewer, I get this from running AD Users and Computer on a member server. Event Type: Error Event Source: Microsoft Exchange Server Event Category: None Event ID: 1000 Date: 02/11/2010 Time: 16:35:04 User: N/A Computer: Description: The description for Event ID ( 1000 ) in Source ( Microsoft Exchange Server ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: maildsmx.dll, 6.5.6944.0, 3edc4ebd, adprop.dll, 5.2.3790.3959, 45d70a1d, 0, 00043c5e. Data: 0000: 41 00 70 00 70 00 6c 00 A.p.p.l. 0008: 69 00 63 00 61 00 74 00 i.c.a.t. 0010: 69 00 6f 00 6e 00 20 00 i.o.n. . 0018: 46 00 61 00 69 00 6c 00 F.a.i.l. 0020: 75 00 72 00 65 00 20 00 u.r.e. . 0028: 20 00 6d 00 61 00 69 00 .m.a.i. 0030: 6c 00 64 00 73 00 6d 00 l.d.s.m. 0038: 78 00 2e 00 64 00 6c 00 x...d.l. 0040: 6c 00 20 00 36 00 2e 00 l. .6... 0048: 35 00 2e 00 36 00 39 00 5...6.9. 0050: 34 00 34 00 2e 00 30 00 4.4...0. 0058: 20 00 33 00 65 00 64 00 .3.e.d. 0060: 63 00 34 00 65 00 62 00 c.4.e.b. 0068: 64 00 20 00 69 00 6e 00 d. .i.n. 0070: 20 00 61 00 64 00 70 00 .a.d.p. 0078: 72 00 6f 00 70 00 2e 00 r.o.p... 0080: 64 00 6c 00 6c 00 20 00 d.l.l. . 0088: 35 00 2e 00 32 00 2e 00 5...2... 0090: 33 00 37 00 39 00 30 00 3.7.9.0. 0098: 2e 00 33 00 39 00 35 00 ..3.9.5. 00a0: 39 00 20 00 34 00 35 00 9. .4.5. 00a8: 64 00 37 00 30 00 61 00 d.7.0.a. 00b0: 31 00 64 00 20 00 66 00 1.d. .f. 00b8: 44 00 65 00 62 00 75 00 D.e.b.u. 00c0: 67 00 20 00 30 00 20 00 g. .0. . 00c8: 61 00 74 00 20 00 6f 00 a.t. .o. 00d0: 66 00 66 00 73 00 65 00 f.f.s.e. 00d8: 74 00 20 00 30 00 30 00 t. .0.0. 00e0: 30 00 34 00 33 00 63 00 0.4.3.c. 00e8: 35 00 65 00 0d 00 0a 00 5.e..... Event Type: Information Event Source: Microsoft Exchange Server Event Category: None Event ID: 1001 Date: 02/11/2010 Time: 16:14:39 User: N/A Computer: Description: The description for Event ID ( 1001 ) in Source ( Microsoft Exchange Server ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: 2068081583, 1, maildsmx.dll, 6.5.6944.0, 3edc4ebd, ole32.dll, 5.2.3790.4750, 4c4d5cee, 0, 0004217f. Data: 0000: 42 00 75 00 63 00 6b 00 B.u.c.k. 0008: 65 00 74 00 3a 00 20 00 e.t.:. . 0010: 32 00 30 00 36 00 38 00 2.0.6.8. 0018: 30 00 38 00 31 00 35 00 0.8.1.5. 0020: 38 00 33 00 0d 00 0a 00 8.3..... 0028: 42 00 75 00 63 00 6b 00 B.u.c.k. 0030: 65 00 74 00 54 00 61 00 e.t.T.a. 0038: 62 00 6c 00 65 00 20 00 b.l.e. . 0040: 31 00 0d 00 0a 00 1.....

I'm getting this same problem and it also started when adding several 2008 boxes. I suspect this has to do with updating the AD Shema.

This hotfix should do the trick. http://support.microsoft.com/kb/946459

Hello, I'm get the same error after extending the schema to level 47 . I have download the fix . My system is Windows Server 2003 R2 Sp1 x86 and Exchange 2003 Sp2 . Is this fix right for me ? Thanks Livia

Hello, I'm get the same error after extending the schema to level 41 . I have download the fix . My system is Windows Server 2003 R2 Sp1 x86 and Exchange 2003 Sp2 . Is this fix right for me ? Thanks Livia