shouldnt it be this?
SET @SQLString = N'SELECT @OUT_Num_regs = COUNT(*) from OPENQUERY(MyLinkServer, ''SELECT dvac_007 FROM cron_007 WHERE codi_007 = '' + @IN_Employee)'
SET @ParmDefinition = N'@IN_Employee varchar(12), @OUT_Num_regs int OUTPUT'
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SQL Server MVP
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