I had an error when trying to validate his workflow url with the following message being displayed: “The request failed with HTTP status 405: Method Not Allowed.” He was running on the following System configuration:
1. Windows 2008 R2 64 bit.
2. SQL Server 2008
3. IIS 7
To resolve this error. I believe the simple solution is to set your IIS application Pool’s 32bit property to true
IIS –>Application pool of WF–> rightclick advanced settings and change 32 bit to TRUE.