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Error 25007.Error occurred while initializing fusion. Setup could not

Hi,

I am trying to install .net framework 2.0 on Windows XP OS.

I get the following error

"Error25007.Erroroccurredwhileinitializingfusion.Setupcouldnot loadfusion with LoadLibraryShim().

how do i solve this?

[791 byte] By [2lazydba] at [2007-12-25]

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# 1

I have the same error installing on Windows XP (home) and Windows Vista (beta 1) This renders the MSDN Professional that I bought USELESS.

Djcoates at 2007-9-3 >

top of Msdn Tech,.NET Development,.NET Base Class Library...

# 2

Try these steps:

1. Do you have the COMPLUS_VERSION environment variable set? If you do, remove it from your environment variable and try to install the framework.

2. Rename mscoree.dll in %windir%\system32 and try to install the framework

3. Look in your registry. If you had a previous version of the framework installed (beta 1, beta 2, etc), see if this key exists:

HKLM\SOFTWARE\Microsoft\.NETFramework\policy\v2.0

Name: 50727

Data: 50727-50727

If you don't have that key, delete the keys that are there and try to install the framework.

QuanT at 2007-9-3 >

# 3

Where do I change the complus variable?

aeppley at 2007-9-3 >

# 4

none of these solutions worked

DayeRev at 2007-9-3 >

# 5

Hi!

Folder "c:\WINDOWS\WinSxS\x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.363_x-ww_691a48fd" was missing on my machine. I tried to copy content of another VS80 CRT folder as this one and voila!

I hope this could help you a bit, Peter

Analog at 2007-9-3 >

# 6

Hello,

I had to remove/rename all "VC80" Dlls, afterwards the installation works.

Cheers!

Wommat at 2007-9-3 >

# 7

Hi wommat,

what do u mean with all VC80 dlls?Dlls starting with that name?

All is started when i tried to install the SP1 of vs2005 and i've had an error during it. Since then, even if i remove everything, i can't install anymore .net framwork 2.0 and i have always the error in the subject :(

Anybody can help me?

rgds

Simon

LittleSimon at 2007-9-3 >

# 8

I experienced exactly the same problem and solved it by deleting the policies folder under %windir%\WinSxS

Hope it helps.

FilipeJanela at 2007-9-3 >

# 9

Thank you! Thank you!

Deleting the policies folder worked for me. VS 2005 and .NET 2.0 was completely dead on my machine after attempting to apply SP1 :(

Perry at 2007-9-3 >

# 10

It worled for me too. Thanks!

MauroMazzieri at 2007-9-3 >

# 11

Filipe Janela,

You deserve the credit...I've lost countless hours trying to avoid reinstalling SO, finally I reached your page and voila!! VS2005 is installing again.

Thanks again

Arvychile

arvychile at 2007-9-3 >

# 12

YES ! This works also for me.

I was also trying to install VS2005 SP1 on my machine and than I wasl unable to install FW 2.0 or VS2005 - always getting error 25007 wheni installing FW 2.0.

Delete the \WINDOWS\WinSxS\Policies that is all !!!

So many thanks to Filipe Janela...

Vojta

Pihrt at 2007-9-3 >

# 13

Thank you! This solution worked for me too!!!

Best regards,

Jure

debigbos at 2007-9-3 >

# 14

Many thanks Filipe...

My problems started when Windows Update pushed the VS2005 SP1 update to me.

I applied the automated update a few times, each time failed. Eventually, I could no longer start Visual Studio or any .Net 2.0 app, and doing a Repair on VS2005 and .Net 2.0 Framework installation both failed.

Found out too late that SP1 requires 6.2 GB of free diskspace (I only had 2 GB free -- thought this would have been plenty of room).

Thanks again for the help,

jason

jasonva at 2007-9-3 >

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