SQL 2008 install hangs on Windows 7

The story: Trying to install SQL2008 on Windows 7 hangs on SqlEngineDBStartconfigAction_install_configrc_Cpu32. What I Tried: Uninstall hangs on validation Manual uninstall using msiinv.exe and msiexec /x works Added SQL service accounts to local admins no help Turn of UAC no help Last lines in setup log: 2010-04-01 16:18:05 SQLEngine: : Checking Engine checkpoint 'GetSqlServerProcessHandle' 2010-04-01 16:18:05 SQLEngine: --SqlServerServiceSCM: Waiting for nt event 'Global\sqlserverRecComplete' to be created 2010-04-01 16:18:07 SQLEngine: --SqlServerServiceSCM: Waiting for nt event 'Global\sqlserverRecComplete' or sql process handle to be signaled 2010-04-01 16:18:07 SQLEngine: : Checking Engine checkpoint 'WaitSqlServerStartEvents' 2010-04-01 16:18:53 Slp: Sco: Attempting to initialize script 2010-04-01 16:18:53 Slp: Sco: Attempting to initialize default connection string 2010-04-01 16:18:53 Slp: Sco: Attempting to set script connection protocol to NotSpecified 2010-04-01 16:18:53 Slp: Sco: Attempting to set script connection protocol to NamedPipes 2010-04-01 16:18:53 SQLEngine: --SqlDatabaseServiceConfig: Connection String: Data Source=\.\pipe\SQLLocal\MSSQLSERVER;Initial Catalog=master;Integrated Security=True;Pooling=False;Network Library=dbnmpntw;Application Name=SqlSetup 2010-04-01 16:18:53 SQLEngine: : Checking Engine checkpoint 'ServiceConfigConnect' 2010-04-01 16:18:53 SQLEngine: --SqlDatabaseServiceConfig: Connecting to SQL.... 2010-04-01 16:18:53 Slp: Sco: Attempting to connect script 2010-04-01 16:18:53 Slp: Connection string: Data Source=\.\pipe\SQLLocal\MSSQLSERVER;Initial Catalog=master;Integrated Security=True;Pooling=False;Network Library=dbnmpntw;Application Name=SqlSetup

And now comes the fun part: When I open conf mgr I can see the service running, I enabled named pipes and TCP/IP, restarted the service I'm able to connect to the server using an OLE DB connection but not with the Native Client. And what I find suspicious is the following error in my app log: .NET Runtime Optimization Service (clr_optimization_v2.0.50727_32) - Failed to compile: C:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\Tools\VDT\DataProjects.dll . Error code = 0x8007000b

In MS connect this is reported as a bug but MS is unable to reproduce the problem altough when you search the fora I'm not the only one with this problem.

So any help is appreciated.

SQL 2008 install hangs on Windows 7

The story: Trying to install SQL2008 on Windows 7 hangs on SqlEngineDBStartconfigAction_install_configrc_Cpu32. What I Tried: Uninstall hangs on validation Manual uninstall using msiinv.exe and msiexec /x works Added SQL service accounts to local admins no help Turn of UAC no help Last lines in setup log:

2010-04-01 16:18:05 SQLEngine: : Checking Engine checkpoint 'GetSqlServerProcessHandle'
2010-04-01 16:18:05 SQLEngine: --SqlServerServiceSCM: Waiting for nt event 'Global\sqlserverRecComplete' to be created
2010-04-01 16:18:07 SQLEngine: --SqlServerServiceSCM: Waiting for nt event 'Global\sqlserverRecComplete' or sql process handle to be signaled
2010-04-01 16:18:07 SQLEngine: : Checking Engine checkpoint 'WaitSqlServerStartEvents'
2010-04-01 16:18:53 Slp: Sco: Attempting to initialize script
2010-04-01 16:18:53 Slp: Sco: Attempting to initialize default connection string
2010-04-01 16:18:53 Slp: Sco: Attempting to set script connection protocol to NotSpecified
2010-04-01 16:18:53 Slp: Sco: Attempting to set script connection protocol to NamedPipes
2010-04-01 16:18:53 SQLEngine: --SqlDatabaseServiceConfig: Connection String: Data Source=\\.\pipe\SQLLocal\MSSQLSERVER;Initial Catalog=master;Integrated Security=True;Pooling=False;Network Library=dbnmpntw;Application Name=SqlSetup
2010-04-01 16:18:53 SQLEngine: : Checking Engine checkpoint 'ServiceConfigConnect'
2010-04-01 16:18:53 SQLEngine: --SqlDatabaseServiceConfig: Connecting to SQL....
2010-04-01 16:18:53 Slp: Sco: Attempting to connect script
2010-04-01 16:18:53 Slp: Connection string: Data Source=\\.\pipe\SQLLocal\MSSQLSERVER;Initial Catalog=master;Integrated Security=True;Pooling=False;Network Library=dbnmpntw;Application Name=SqlSetup

And now comes the fun part: When I open conf mgr I can see the service running, I enabled named pipes and TCP/IP, restarted the service I'm able to connect to the server using an OLE DB connection but not with the Native Client. And what I find suspicious is the following error in my app log: .NET Runtime Optimization Service (clr_optimization_v2.0.50727_32) - Failed to compile: C:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\Tools\VDT\DataProjects.dll . Error code = 0x8007000b

In MS connect this is reported as a bug but MS is unable to reproduce the problem altough when you search the fora I'm not the only one with this problem.

So any help is appreciated.