bBlint is a useful tool written by RevEng which will do basic code checking such as: unindented commands, indented "end", unmatched for and next counts, and incorrect "end" counts. Now VisualbB can be integrated with bblint. Simply download bblint from here and unzip to the same folder as visualbb.exe. When detected, the following menu will be enabled.
Additionally, when compiling bblint will be run and report back any errors discovered before launching the compiler providing an easier way to debug syntax errors missed by the vbB editor. If you want to test this out you'll need to download this build of VisualbB.