The Siemens part number 6AV6610-0AA01-3CA8 refers to WinCC flexible 2008 Micro, an engineering software package used for configuring SIMATIC Micro Panels. Here's a quick overview:

Type: Engineering software (WinCC flexible 2008 Micro)

License: Single license with software and documentation on DVD

Supported OS: Windows XP Professional/Home, Windows 7 Professional/Ultimate/Enterprise (32/64-bit)

Languages: German, English, French, Italian, Spanish

Net Weight: Approx. 0.193 kg

Packaging Dimensions: 19.00 x 24.00 x 2.30 cm

Lifecycle Status: Discontinued as of October 1, 2018 — no direct replacement

Special Note: Product was deleted without replacement; Siemens recommends contacting your local office for assistance