A Microsoft Corp. executive last year said the software company made a mistake by lowering the minimum technical requirements needed to run Windows Vista, a decision he said was made to help Intel Corp. meet its quarterly earnings, according to internal emails disclosed this week. The emails provide a glimpse into how Microsoft executives and hardware partners grappled with technical glitches and other problems as they prepared the long-awaited Windows Vista software for market. The emails were released as part of a federal class-action suit alleging that Microsoft's marketing program for Windows Vista misled consumers. In several of the emails,...