// We assume that Set() is called inside the transaction, as soon
// as any write work has been done on the catalog.
internal void Set()
{
try
{
if (!_set && ContextUtil.IsInTransaction)
{
_set = true;
RegistryKey key = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Classes\\CLSID");
_version = (int)(key.GetValue("CLBVersion", 0));
DBG.Info(DBG.Registration, "Old version: " + _version);
}
}
catch (Exception)
{
// We don't need to watch if the key isn't there, or if
// other things failed.
_set = false;
_version = 0;
DBG.Warning(DBG.Registration, "Failed to retreive original catalog version.");
}
}