# Threading

> Use ServerTextControl and MailMerge on several threads: thread safety and critical sections, one instance per operation, parallel loops and background work.

- **Product:** TX Text Control .NET Server
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET Server > Performance and Scalability > Threading
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/threading/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/threading/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/threading/llms-full.txt

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## On This Page

- [How TX Text Control Handles Threads](https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/threading/#how-tx-text-control-handles-threads)
- [Create One Instance per Operation](https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/threading/#create-one-instance-per-operation)
- [Process Documents on Several Threads](https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/threading/#process-documents-on-several-threads)
- [Move Long Work Out of the Request](https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/threading/#move-long-work-out-of-the-request)
- [Set the Culture of Each Merge](https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/threading/#set-the-culture-of-each-merge)
- [Next Steps](https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/threading/#next-steps)

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## Nearby

- **Previous:** [Performance and Scalability](https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/llms.txt)
- **Next:** [Multiple Processes](https://docs.textcontrol.com/tx-text-control-dotnet-server/performance/multiple-processes/llms.txt)