DLLDOWNLOADSYSTEM

"%systemroot%\system32\macromed\flash9d.ocx  Then manually register it like this:

Regsvr32 flash9d.ocx

Flash9d.ocx error detail:

Event Type: Error
Event Source: Application Error
Event Category: None
Event ID: 1000
Date: 8/23/2007
Time: 9:01:08 AM
User: N/A
Computer: ZZZZZZ
Description:
Faulting application iexplore.exe, version 7.0.6000.16512, faulting module flash9d.ocx, version 9.0.47.0, fault address 0x00099a25.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 6c707041 74616369 206e6f69 6c696146
0010: 20657275 78656920 726f6c70 78652e65
0020: 2e372065 30362e30 312e3030 32313536
0030: 206e6920 73616c66 2e643968 2078636f
0040: 2e302e39 302e3734 20746120 7366666f
0050: 30207465 39393030 0d353261 0a

Please also try :

1.Expand the C:\Windows\System32\Macromed\Flash directory, and double-click on FlashUtil9b.exe. Make sure all your browsers are closed, then reboot.

2. update to the beta Flash Player Update 3 (9.0.60.184) from http://labs.adobe.com. And be certain to update to the final Flash Player 9 Update 3 release when it is available.

3. reduce the number of tabs open in an instance of IE7. Reducing the number of tabs simultaneously running SWFs will reduce the amount of memory consumed, and will decrease the likelihood for the crash condition to occur.

4.if you have X number of tabs open and crash, try limiting yourself to X-3 tabs or so. For example, if you have 7 tabs open and crash fairly consistently, try to limit yourself to 6 tabs. If 6 tabs fail, try 5.

5. Launch new instances of IE7, and limit the number of tabs launched per instance

Optionally, as suggested above, you do have the option to use Flash Player 8 in the interim:
-- rolling back to Flash Player 8 using the technote "Archived Flash players available for testing purposes". You'll need to be vigilant about preventing any Flash Player 9 updates. And note that this will prevent you from viewing any content that requires Flash Player 9.