I have designed an application that requires no install and can be used by non-administrators. I would rather not lose this functionality but when I use the .exe on other comput
What am I doing wrong here
What you had was dll hell. You had unintentionally used a dynamic linkage with the previous compiler where it just happened on most target systems there was an appropriate C runtime. Windows often included VC 6 CRT, and with more recent SP even VC7 & 8 CRT.
When you changed to the latest VC compiler most systems will not have the new VC runtime pre installed for you.
As Michael Burr says, you can have your 'no install' back if you link statically.
Or you could include the CRT and manifest in the same folder, still doesn't require install.
Or include the vcredist.exe from VS2010 and have a 1 off install
Configure your project to statically link to the C/C++ runtime instead of linking to the runtime DLL:
Select Multi-threaded (/MT) (or Multi-threaded Debug (/MTd) for your debug build).
As an alternative, you should be able to get xcopy deployment of the C/C++ runtime DLL using the technique documented on http://msdn.microsoft.com/en-us/library/ms235291.aspx under the heading "Deploying Visual C++ library DLLs as private assemblies". I haven't tried that technique, as it's generally simpler to just statically link if you need xcopy installation of a native C++ program.
You need to install Microsoft Visual C++ 2010 Redistributable Package.
http://msdn.microsoft.com/en-us/library/ms235299.aspx
Distributing apps that have been compiled with Visual C++ requires distributing the C++ runtime .dlls that your app uses. In your case, I assume you want to just distribute a folder, so follow the directions (appropriately modified for your app) here:
http://msdn.microsoft.com/en-us/library/dd293565.aspx
Or just copy msvcp100.dll into your application's directory alongside the .exe and you'll be good to go.
32-bit msvcp100.dll
is in C:\Windows\SysWOW64\
64-bit msvcp100.dll
is in C:\Windows\System32\