Installing msvcp60.dll
Visual C++ 6.0 run-time contains msvcp60.dll
To get Adobe Acrobat running under Wine I needed the DLL file msvcp60.dll, and I found out that it is contained in the Visual C++ 6.0 run-time by Microsoft. Installing this fixed my problem.
How to get Visual C++ 6.0 run-time
The msvcp60.dll is contained in an installer called vcredist.exe. This can in turn be obtained by this German installer by Microsoft, called VC6RedistSetup_deu.exe. Another option is to extract it from the Visual Studio 6 Service Pack, using cabextract or 7zip.