Exchange Error ID no: c1041724

[tagwar]

Hi experts

I hope to get help from you

I am really in big troubles

The scenario as below

I have Domain controller and the same is Exchange server also

I try to install ISA server 2006

I try to install of course I follow all the steps but while instillation it ask me for "UPdate.exe"

I don't know what this file is so I cancel the instillation

Everything rolled back

After rolling back the exchange server stop working

It give me the below error message

"An internal processing error has occurred. Try restarting the Exchange System Manager or the Microsoft Exchange Information Store service, or both.

ID no: c1041724

Exchange System Manager"

I try this article from MS but no hope

http://support.microsoft.com/kb/827283

i try this also

http://forums.msexchange.org/m_1800446156/....htm#1800446156

but still no hope

Really I don't know what to do

I hope any one can help in this issue