It is being used by another process

The process cannot access the file 'C:\Windows\SysWOW64\perf-MSSQL10_50.MSSQLSERVER-sqlagtctr.dll' because it is being used by another process

	Type: Bug ID: 576412 Opened: 7/19/2010 8:34:44 AM Access Restriction: Public				1 Workaround(s) view | add 3 User(s) can reproduce this bug I can too Watch List add | remove

Windows 7 x64, SQL 2008 SP1 CU8 upgrade to SQL 2008 R2 RTM. i get this error message everytime:

The following error has occurred:

The process cannot access the file 'C:\Windows\SysWOW64\perf-MSSQL10_50.MSSQLSERVER-sqlagtctr.dll' because it is being used by another process.

Click 'Retry' to retry the failed action, or click 'Cancel' to cancel this action and continue setup.

For help, click: http://go.microsoft.com/fwlink?LinkID=20476&ProdName=Microsoft+SQL+Server&EvtSrc=setup.rll&EvtID=50000&ProdVer=10.50.1600.1&EvtType=0x60797DC7%25400x24C2C4E7

I tried to use process explorer to determine what has this locked, but i am starting to suspect some type of redirection is not occurring?

WORKAROUND :- 


1) Stop SQL Services.
2) Rename the file

Original name: perf-MSSQL10_50.MSSQLSERVER-sqlagtctr.dll
Renamed: OLD_perf-MSSQL10_50.MSSQLSERVER-sqlagtctr.dll
and was able to 'Retry' the Repair SQL 2008 R2 installation and continue.

This works.