SQL Comparison SDK
Latest version: 10.0
Knowledge Base
RedGate.Licensing.Helper.dll is attempting managed execution inside OS Loader lock
Category: Troubleshooting & error messages
Date: 28 Jan 2009
Product: SQL Comparison SDK
Versions: 3,4,5,6.0
Fix Version: 6.2
When debugging SQL Comparison SDK code in Visual Studio 2005, an error may occur on the Database constructor method ( db1=new Database).
DLL 'D:\MyProject\bin\Release\RedGate.Licensing.Helper.dll' is attempting managed execution inside OS Loader lock. Do not attempt to run managed code inside a DllMain or image initialization function since doing so can cause the application to hang.
This error message is not critical and is caused by Managed Debugging Assistants (MDAs) introduced in Microsoft .NET 2.0. To prevent this error from stopping your code, disable Loader lock:
In Visual Studio, click the Debug menu, then select Exceptions. Locate
'Loader Lock' under 'Managed Debugging Assistants'. De-select 'Thrown'.
Note that this may not work if the loaderlock is actually causing two threads to deadlock for resources.
This message should not appear in version 6.1 and up of the Red Gate SQL Comparison SDK.
Document ID: KB200708000127 Keywords: SQL,Compare,LoaderLock
Was this article helpful?
SQL Comparison SDK
- Licenses.licx is not a valid Win32 application
- Application licensing invalidated by renaming assembly
- Excluding a table from a data comparison
- Manually licensing Red Gate assemblies
- RedGate.Licensing.Helper.dll is attempting managed execution inside OS Loader lock
- Troubleshooting SQL Comparison SDK licensing
- SQL Compare synchronization error 'Full-Text Search is not installed'
- Using SQL Data Compare mappings in projects using the API
- Licensing automated builds with NAnt
- Licensing ASP .NET applications
- Running SQL code inside SQL Comparison SDK applications
- Creating an HTML report of schema differences in C#
- Creating a synchronization script without batch markers
- Creating an HTML report of schema differences in Visual Basic .NET
- SQL Toolkit has become SQL Comparison SDK
- SQL Comparison SDK column mapping
- Executing your own SQL queries together with SDK synchronization
- Error 1603 occurring during installation
- Licensing SDK applications in Visual Studio 2010
all SQL products
- Compatibility of Red Gate tools in 64-bit environments
- Application has encountered an error and needs to close
- Error message after installing SQL Toolbelt - The description for Event ID ( 1 ) in Source ( nview_info ) cannot be found.
- Changing the temporary directory used by the installer
- Toolbelt Installer "hanging" while "scanning volumes"
- Login failing with "trusted SQL Server connection" error when using RunAs
all products
- Some Red Gate products identified as containing a trojan by Anti-Virus software
- Activation may fail with Unknown Error -1
- Product uses web help although a CHM file is available locally
- Argument exception resulting from missing environment variable
- Check for updates may fail when used through proxies
- 'Unidentified Publisher' error when repairing or uninstalling
- Licensing activates product as standard edition
- Moving Red Gate software products to another machine
- Red Gate tools log locations
- The application UI opening slowly when there is no internet access
SQL Comparison SDK
all SQL products
all products
- Red Gate product acknowledgements
- Activating your products
- Activating your products
- Red Gate bundle history
- Check for updates
- Troubleshooting Check for Updates errors
- Current versions
- Deactivating your products
- Installing Red Gate products from the .msi file
- Requesting additional activations
- Serial numbers for bundles
- Reactivating using a different serial number
- Extending your trial
- Finding your serial numbers
- Moving a serial number from one computer to another
- No response received for manual activation
- Licensing and activation resources
- Licensing and activation resources
- Troubleshooting licensing and activation errors
- Licensing and activation FAQs
- Red Gate tools log file locations
- Download old versions of products
- Download product prerequisites & utilities
- Support & upgrades
- Upgrading your software
- Upgrading FAQs

Licensing and distribution