Installation .NET Framework 2.0

I am having trouble reinstalling .NET Framework 2.0 on an exchange 2007 x64 server.  When I run Netfx64.exe it gives an "Error 1324. The folder path 'Program Files' contains an invalid character". There are two Program Files folder on C: one is Program Files and the other Program Files (x86). Perhaps there is a confict here.

Because of .NET error non of the Exchange 2007 services are starting. Any help will be appreciated.

Thanks!
EverardSinghAsked:
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James MontgomeryCommented:
Hello EverardSingh,

check HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ProgramFilesDir to make sure it doesn't have any spaces or invalid chars

Regards,

JimboEfx
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James MontgomeryCommented:
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EverardSinghAuthor Commented:
JimboEfx,

There are three entries as below:
ProgramFilesDir  REG_SZ   C:\Program Files
ProgramFilesDir  REG_SZ   C:\Program Files (x86)
PrograFilesPath  REG_EXPAND_SZ    %ProgramFiles%
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EverardSinghAuthor Commented:
JimboEfx,

I have followed instructions on article 908077 to manually remove the .net 2.0 installation. .The problem is when I try to reinstall .net the above mentioned error occurs.

Everard
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lciprianionutCommented:
You are installing the right .NET Framework edition like Microsoft .NET Framework Version 2.0 Redistributable Package (x64) from http://www.microsoft.com/downloads/details.aspx?FamilyID=b44a0000-acf8-4fa1-affb-40e78d788b00&displaylang=en for 64-bit support ?
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EverardSinghAuthor Commented:
lciorianionut,
Y, that is exactly thet x64 bit package I am trying to install

Everard
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EverardSinghAuthor Commented:
Thanks for all the help.  However, it did not help resolve the issue. Due to the citrical nature of the issue I had to accquire help of an Exchange engineer who was able to remove and reinstall .NET 2.0 services and all Exchange 2007 services started working properly. I don't know exactly what was done by the engineers to resolve the issue.

Regards!

Everard
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nylleCommented:
This program resolved the problem with Error 1324 and .Net 2.0
http://astebner.sts.winisp.net/Tools/dotnetfx_cleanup_tool.zip
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