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# RDP replay tips

Before replaying an RDP Vuser script, consider these guidelines.

In this topic:

## Modify the RDP remote desktop resolution

Before replaying your script, you can modify the remote desktop resolution size using the RDP > Configuration > Remote desktop resolution runtime setting.

However, if your script contains synchronization calls, changing the resolution may introduce synchronization errors during replay, and your script may fail to run.

Recommended: Keep the default As recorded value.

## CredSSP authentication

You can replay RDP scripts using CredSSP authentication for the client-server connection. Scripts that were recorded with CredSSP authentication support CredSSP authentication for replay. However, scripts that were recorded with a different security level (standard RDP or SSL) must be modified before replay in order to support CredSSP authentication. For details, see Modify a script to support CredSSP authentication.

## See also

- Security levels in RDP scripts

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