Is there a jpeg.prj in the package?
Typically, opening (double-clicking) a .prj file automatically creates a .sln file if one of them with the same base name is not already present in this folder.
If this does not happen, do what @HansPassant suggested: Run nmake -f makefile.vc setup-v10to create the jpeg.sln file.
. NMAKE exec. , > All Programs > Microsoft Visual Studio 10 > Visual Studio Tools > Visual Studio Command Prompt (2010), .
. jpeg.sln ( , jpeg.vcxproj ..)
Microsoft Visual Studio Solution File, Format Version 11.00
# Visual C++ Express 2010
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpeg", "jpeg.vcxproj", "{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Release|Win32 = Release|Win32
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.ActiveCfg = Release|Win32
{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.Build.0 = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal