Citrix MetaFrame Application for Windows 1.8 Administrator's Manual page 157

A P P E N D I X
You do not normally need to override the default values for ICA Browser registry
entries. However, for some systems you can adjust individual parameters to suit
your particular needs.
Ã
To edit the registry
1. Click the Start button and then click Run.
2. Type regedt32 and click OK to load the Registry Editor.
For detailed information on how to add a parameter to a key in the registry, see the
online Help for the Registry Editor.
Terminal Server documentation for instructions on making a backup of the
registry.
The ICA Browser variables are in the following registry path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\
ICABrowser\Parameters
must be stopped and restarted for the new values to take effect. The ICA Browser
can be stopped and started using the Services icon in Control Panel. When the
browser is restarted, a new election takes place using the changed values.
AckRetries
C
Make a backup of your registry before changing any settings. See the
If any of the registry variables below are changed, the ICA Browser
REG_DWORD 0 - 0xffffffff
Specifies the number of times the browser tries to send a master browser
update before forcing a browser election.
(3 = default)