The REScheck and COMcheck code compliance tools are designed to operate on the following operating systems and browsers. While REScheck/COMcheck may operate using older versions of the listed software, technical support will be limited to these versions. Instructions for determining what version number you are using may be obtained at whatversion.net.
As of 2026, the following software and versions are supported:
Operating Systems (Desktop)
| Operating System |
REScheck (desktop) COMcheck (desktop) |
|---|---|
| Windows |
Windows 7 Windows 10 |
| Mac | Not Supported |
| Linux | Not Supported |
Browsers (Web)
| Browser |
REScheckWeb COMcheckWeb |
Notes |
|---|---|---|
| Firefox | Latest stable version and previous 2 versions | Supported for most functionality |
| Edge | Latest stable version and previous 2 versions | Chromium-based; fully supported |
| Chrome | Latest stable version and previous 2 versions | Supported |
| Safari | Latest stable version and previous 2 versions (MacOS/iOS) | Supported for most functionality; minor UI differences possible |
| Internet Explorer | Not supported | Deprecated; use Edge instead |