Elimination of ~SAK files
Applies to: 
Visual Studio 
Visual Studio for Mac
Note
This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here
In Source Control Plug-in API 1.2, the ~SAK files have been replaced by capability flags and new functions that detect whether a source control plug-in supports the MSSCCPRJ file and shared checkouts.
~SAK files
Visual Studio .NET 2003 created temporary files prefixed with ~SAK. These files are used to determine if a source control plug-in supports:
The MSSCCPRJ.SCC file.
Multiple (shared) checkouts.
For plug-ins that support advanced functions provided in the Source Control Plug-in API 1.2, the IDE can detect these capabilities without creating the temporary files through the use of new capabilities, flags, and functions, detailed in the following sections.
New capability flags
SCC_CAP_SCCFILE
SCC_CAP_MULTICHECKOUT
New functions
If a source control plug-in supports multiple (shared) checkouts, then it declares the SCC_CAP_MULTICHECKOUT capability and implements the SccIsMultiCheckOutEnabled function. This function is called whenever a checkout operation occurs on any of the source-controlled projects.
If a source control plug-in supports the creation and use of an MSSCCPRJ.SCC file, then it declares the SCC_CAP_SCCFILE capability and implements the SccWillCreateSccFile. This function is called with a list of files. The function returns TRUE' or 'FALSE for each file to indicate whether Visual Studio should use an MSSCCPRJ.SCC file for it. If the source control plug-in chooses not to support these new capabilities and functions, it can use the following registry key to disable the creation of these files:
[HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\8.0\SourceControl]DoNotCreateTemporaryFilesInSourceControl = dword:00000001
Note
If this registry key is set to dword:00000000, it is equivalent to the key being nonexistent, and Visual Studio still attempts to create the temporary files. However, if the registry key is set to dword:00000001, Visual Studio does not attempt to create the temporary files. Instead it assumes that the source control plug-in does not support the MSSCCPRJ.SCC file and does not support shared checkouts.