Software giant Microsoft ( MSFT) will shine a light on tech spending when the company announces its eagerly anticipated third-quarter results Thursday after market close.

Despite solid results from Apple ( AAPL) and Google ( GOOG), most of the tech sector is still reeling from the spending crunch.

Microsoft, which is one of the most recognizable brands on the planet, is hardly immune to the recession. It is expected to post lower sales than the same period last year.

Based on analysts' revenue estimate of $14.09 billion, Microsoft is in danger of reporting its first year-over-year sales decline in its 23-year history, underlining the challenges facing the tech sector. If the company's sales come in as expected, they will represent a decline of 2.5% on the prior year's quarter and a 15% sequential drop.

Analysts surveyed by Thomson Financial are looking for earnings of 39 cents a share, compared to 47 cents a share in the same period last year.

Confronted with a slumping PC market, investors will be closely monitoring the impact on sales of Microsoft's Windows operating system. At least one analyst, however, thinks the third quarter will mark the low point of the software giant's fiscal year.

"It looks like March could be the recessionary trough for client revenue," wrote Katherine Egbert, an analyst at Jefferies & Company, in a note released Wednesday. "PC units and Windows mix could be better than feared."

The analyst pointed to chip giant Intel ( INTC)'s recent comments about bottoming PC demand, and better-than-expected shipment figures from technology research firms.

"Gartner, IDC and Intel all noted stronger demand in the largest PC markets, the US and China, and still-weak demand in Europe and other emerging markets," wrote Egbert.

Another analyst says that Microsoft is looking to get its new Windows 7 operating system to PC manufacturers earlier than expected, offering a long-term boost to revenue.

"Release to manufacturers will likely happen in the first week of July, two months in advance of what Wall Street is expecting," wrote Sandeep Aggarwal, senior internet research analyst at Collins Stewart. "We believe that Windows 7 can be a $3 billion in incremental revenue opportunity for Microsoft."

Shares of Microsoft slipped 19 cents, or 1.01%, to $18.59 in Thursday trading, mirroring the broader decline in tech stocks which saw the Nasdaq fall 0.28%.

More from Technology

Deconstructed: Why Micron's Stock Has Exploded 11% in 13 Hours

Deconstructed: Why Micron's Stock Has Exploded 11% in 13 Hours

Pegasystems Founder Explains Why He Has One of the Hottest Tech Stocks Around

Pegasystems Founder Explains Why He Has One of the Hottest Tech Stocks Around

Experts Break Down GDPR Risks for Investors

Experts Break Down GDPR Risks for Investors

4 Billionaires Trying to Make Space Travel a Reality

4 Billionaires Trying to Make Space Travel a Reality

Facebook CEO Mark Zuckerberg Deflects Tough Questions From European Parliament

Facebook CEO Mark Zuckerberg Deflects Tough Questions From European Parliament